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? Cheap Ecco Shoes Online . Louis Cardinals placed outfielder Allen Craig on the 15-day disabled list with a right knee contusion on Sunday. Cheap Ecco Shoes Australia . Both of Padakins goals came in the second period while Zane Jones added a single in the first period for Calgary (13-6-4). Hitmen goaltender Chris Driedger finished with 30 saves for the shutout. http://www.cheapeccoaustralia.com/. And once again, Team Homan emerged as the victor with the reigning national champions defeating Team Sweeting at the Pintys All-Star Curling Skins Game Friday night in the tournaments opening draw at The Fenlands Banff Recreation Centre in beautiful Banff National Park. Ecco Shoes On Sale Australia . Rockhold." Known as an aggressive striker, Belfort (23-10) instead paced himself as the engaged in the early going and showed restraint by not overcommitting against the larger Rockhold (10-2). But when the opportunity presented itself, Belfort delivered an incredible spinning heel kick that landed flush on Rockholds chin and sent him toppling to the floor. Ecco Shoes Wholesale . It was well worth the wait. Manning and the Denver Broncos waited eight long months, then another 33 minutes to get the season started because of a lightning storm.Roger Federer and Stanislas Wawrinka won their singles matches on Friday to give Switzerland a convincing 2-0 lead over Serbia in their World Group first-round tie. Returning to Davis Cup tennis, Federer cruised past Ilija Bozoljac, winning 6-4, 7-5, 6-2 in less than two hours. Federer faced little challenge from Bozoljac, who served well but still was no match for his Swiss opponent. Australian Open champion Wawrinka faced a tougher task against 102-ranked Dusan Lajovic in the second match, before winning 6-4, 4-6, 6-1, 7-6 (7). Bozoljac began his match against Federer with two aces and had a set point while leading 5-2 in the second. But Federer held serve and broke to regain control over the set. "Ilija was playing well, especially in the second set," Federer said. "It was a tough game, it could have been one set all." Federer was making his first Davis Cup appearance since 2012. Bozoljac said he was disappointed about his missed chance to win the second set. "I lost focus and Federer stepped up the game," Bozoljjac said.dddddddddddd Lajovic opened his match with a break, but Wawrinka soon broke back and went on to win the set easily. Lajovic then took advantage of several unforced errors by Wawrinka to take the second set. However, Lajovic missed two set points in the tie break of the fourth before Wawrinka closed out the match. "It was a tough game, he played well," Wawrinka said. "Its never easy when you come so late after an important tournament, but I managed to overcome that." Switzerland is an overwhelming favourite against Serbia, last years finalist and the 2010 Davis Cup champion, which is playing without Novak Djokovic and two other top players. The second-ranked Djokovic decided to rest after losing to Wawrinka in the Australian Open quarter-finals, while Janko Tipsarevic is nursing a heel injury and Viktor Troicki is serving a 12-month doping ban for failing to appear at a test. That means Lajovic is Serbias highest-ranked team member. The winner plays Belgium or Kazakhstan in the quarter-finals in April. ' ' '