Championship leader Nico Rosberg remained the man to beat at Mercedes in Practice One at the Russian GP as he set a commanding pace from team-mate Lewis Hamilton. In an opening session at the Sochi Autodrom totally dominated by F1s world champions, Red Bull still claimed most attention by debuting their answer to the sports search for improved cockpit protection for drivers.Daniel Ricciardo completed an installation lap with the teams aeroscreen concept attached to the front of his RB12. The windscreen-like device successfully held up in static tests away from the circuit last week, when an F1 wheel was fired at it at 225kph. After Ferrari trialed a halo design in winter testing, Red Bulls idea has split opinion, amid the FIAs search for a workable solution to be incorporated into the design of the all-new 2017 cars. Daniel Ricciardo completes a single installation lap with Red Bulls new aeroscreen canopy On the timesheet in Sochi, Mercedes immediately appeared at their best at the former Winter Olympics venue and ended P1 one second ahead of Ferrari.Their advantage was flattered by the fact Rosberg and Hamilton set their best laps on the quickest tyres available, the supersofts, whereas the Ferrari pair did not. However, Rosbergs 1:38.127 time was still an eye-catching early effort when compared to Hamiltons.The world champion, aiming to get his title defence properly up and running after a string of problematic races at the start of 2016, could not match Rosbergs speed on the supersofts and wound up 0.7s adrift. He was also one of a number of drivers to spin with the track offering up little grip so far.Sky F1 schedule: When is the Russian GP?Sebastian Vettel recovered from two lurid spins to take third place ahead of Kimi Raikkonen, as both Ferraris stuck with the slower soft tyres. With the SF16-Hs engine believed to have been upgraded for this race, the under-pressure Scuderia did run into some early reliability problems - albeit of the mechanical kind via a DRS fault on Raikkonens car.Williams Felipe Massa was sidelined by a clutch fault in the early stages of the session, but steadily worked his way up the order on his return and ended a promising fifth.Once the canopy had been taken off his car, Daniel Ricciardo showed flashes of speed to take sixth, ahead of the second Williams of Valtteri Bottas and other Red Bull of Daniil Kvyat. Kvayt, aiming to build on the second podium finish of his career at the last race in China, lost the back end of his RB12 rounding Turn 17 but, despite spinning 180 degrees, was able to continue without damaging his car.The Russian was joined in the P1 field by countryman Sergey Sirotkin, who returned to an F1 car for the first time in two years after signing with Renault as a test driver earlier this week.The 20-year-old, whose one previous practice outing at the top level came with Sauber at the inaugural Sochi race in 2014, performed well on his debut in the RS16, finishing 13th - five places and 0.7s ahead of Renault regular Jolyon Palmer.McLarens Jenson Button (11th) and Fernando Alonso (12th) again finished just outside the top 10, with both former champions also caught out by the track conditions. Button spun at Turn 15, while Alonso went straight on at Turn Two on several occasions.Practice One timesheet1. Nico Rosberg, Mercedes, 1:38.1272. Lewis Hamilton, Mercedes, 1:38.8493. Sebastian Vettel, Ferrari, 1:39.1754. Kimi Raikkonen, Ferrari, 1:39.3325. Felipe Massa, Williams, 1:39.3656. Daniel Ricciardo, Red Bull, 1:39.6507. Valtteri Bottas, Williams, 1:39.8028. Daniil Kvyat, Red Bull, 1:40.2189. Sergio Perez, Force India, 1:40.28710. Carlos Sainz, Toro Rosso, 1:40.65411. Jenson Button, McLaren, 1:40.66312. Fernando Alonso, McLaren, 1:40.77113. Sergey Sirotkin, Renault, 1:40.89814. Felipe Nasr, Sauber, 1:41.08515. Max Verstappen, Toro Rosso, 1:41.13416. Esteban Gutierrez, Haas, 1:41.23817. Romain Grosjean, Haas, 1:41.38518. Jolyon Palmer, Renault, 1:41.67119. Marcus Ericsson, Sauber, 1:41.96220. Pascal Wehrlein, Manor, 1:42.48321. Rio Haryanto, Manor, 1:42.68722. Alfonso Celis, Force India, 1:43.432Watch the whole Russian GP weekend - LIVE ONLY on Sky Sports F1. The race begins at 1pm on Sunday, with build-up from 11.30am. Or watch the race without a contract for £6.99 on NOW TV. Every race live in 2016 Sky Sports F1 brings you every race live in 2016. Fast and easy online upgrade - click here. Also See: WATCH: Red Bulls canopy test When is the Russian GP on Sky? Replica Soccer Jerseys . David Perron had a career high four-point night with two goals and two assists as the Oilers experienced an offensive explosion, blasting the Columbus Blue Jackets 7-0 to record a rare home win for their second victory in a row. Fake Soccer Jerseys . On Wednesday, Tottenham manager Andre Villas-Boas hit back. In a passionate defence of himself and the London clubs medical staff, the Portuguese coach rebuked the "incompetent people" who have attacked Tottenham for allowing Lloris to continue playing after being briefly knocked unconscious against Everton on Sunday. https://www.soccerjerseyschina.us/ . -- Michigan coach John Beilein is willing to give Nik Stauskas a little leeway when it comes to shot selection. Wholesale Soccer Jerseys China .Dawson also birdied two of the last four holes to reach 12-under 132 on TPC San Antonios AT&T Canyons Course. He won his only title in a PGA Tour-sanctioned event in 2002 in the Web.com Tours LaSalle Bank Open.Im not going to lose any sleep, believe me, Dawson said. I used to be a perfectionist, but my attitude now is to play like Im in the pro-am. Stitched Soccer Jerseys . The Swiss won on the fastest run-time tiebreaker after the four-racer teams tied 2-2. Wendy Holdener and Reto Schmidiger won their final heats against Julia Mancuso and Tim Jitloff, respectively.HOUSTON -- George Springer singled home the winning run in the 11th inning to give the Houston Astros a 5-4 victory over the Seattle Mariners on Friday night. The touted rookie came through with an infield hit toward third after beginning the night 0 for 5 with four strikeouts in a game started by Seattle ace Felix Hernandez. Jose Altuve singled off Charlie Furbush (0-3) to open the 11th and Dexter Fowler reached on a bunt single. A sacrifice bunt by Carlos Corporan came next, and Altuve beat the throw to third to load bases for Springer. Anthony Bass (1-0) pitched two scoreless innings for the win. Marc Krauss had two hits and drove in two runs for Houston. Mike Zunino hit a two-run homer and Kyle Seager added a pair of RBIs for Seattle, which had a three-game winning streak snapped. Houston had trouble taking advantage of chances throughout the game and was 3 for 17 with runners in scoring position. Robinson Cano was initially ruled safe on a grounder with two outs in the 10th inning. But the play was challenged and overturned on replay to end the inning. The Astros tied it at 4 in the eighth when Alex Presley scored on a groundout by Jonathan Villar. Hernandez allowed five hits and three runs -- two earned -- with six strikeouts in five innings. Houston starter Brad Peacock gave up six hits and four runs while also striking out six in six innings. Michael Saunders started the sixth with a bunt single and Cano drew a one-out walk before Cory Hart singled to load the bases. Seagers two-run double came next to give Seattle a 4-3 lead.ddddddddddddSpringer had a chance to catch the ball in right field, but it bounced off his glove as he crashed into the fence near the bullpen. Springer was down on the ground as Fowler came over to retrieve the ball. Seager singled with no outs in the fifth before Zunino connected on his homer to the Crawford Boxes in left field to tie it at 2 with two outs. Hernandez plunked Jason Castro in the fifth before Krauss RBI single, on a ball that bounced right in front of the wall in right field, put Houston back on top 3-2. Krauss was out at second trying to stretch the hit into a double. Altuve had a bunt single to start Houstons third before a single by Fowler. The Astros went up 1-0 when Castro reached and Altuve scored on an error by centre fielder Abraham Almonte, who was sprinting toward the wall when the ball just eluded his glove. Krauss RBI single sent Fowler home to push the lead to 2-0. NOTES: Seattle RHP Hisashi Iwakuma (finger) is scheduled to come off the disabled list and make his season debut against left-hander Dallas Keuchel when the series continues Saturday. Mariners manager Lloyd McClendon said Iwakuma will likely by limited to about 100 pitches. ... McClendon said he expects RHP Taijuan Walker (shoulder) and LHP James Paxton (back) to start throwing bullpens sometime in the next week. ... Houston signed left-handed reliever Tony Sipp. The Astros also optioned RHP Paul Clemens to Triple-A and transferred RHP Jesse Crain to the 60-day disabled list. ' ' '