Nico Rosberg continued his fine start to the season by topping the timesheets in a Chinese GP first practice session that was disrupted by red flags and punctures. The German has claimed victory in the first two races of the season, bringing his winning streak to five races, and beat team-mate Lewis Hamilton by just over a tenth of a second with a 1:38.037 in Shanghai on Friday morning.Ferraris Sebastian Vettel trailed the Mercedes duo in third, while Fernando Alonso made his return from injury to finish 12th in the McLaren. However, P1 was overshadowed by two red flags due to rear left tyre problems.First, Felipe Massa spun off at Turn Six after his tyre came loose, with debris flying off his Williams. Following heavy clean-up work on track and back in the garage the Brazilian returned later on in the session, only to face a failure on the same tyre, at the same corner.Moments later, Kevin Magnussen was also limping back to the pits with the same rear left tyre shredded. Pirelli insisted that Massas issues were not down to simple punctures, instead putting it down to air loss connected to technical trouble. They later confirmed that the Williams and Renault problems were not tyre related.While investigations will continue, McLaren engineers suspected that the Williams problem was due to the tyre rubbing against body work, with Magnussens down to debris on the track.Massa though, was uncertain. We had two punctures. Why? I dont know, he told Sky Sports F1. We are investigating. For sure, something is touching the tyre or the wheel or whatever.We had no idea why we had the first problem. We checked the car and it was ok. But then we had the same problem. Hamilton, who has been handed a five-place grid penalty for the race, set the early pace on the medium compound - two tenths faster than Rosberg.However, the world champion was reporting problems as he locked up and span off twice at Turn 11.Following the 30-minute stoppage due to the second red flag there was a flurry of activity at the end of the session, during which Rosberg edged ahead of his team-mate.Even Rosberg encountered issues towards the end of the session, which Mercedes diagnosed as an ignition problem. Whens the Chinese GP on Sky? All the broadcast times you need for this weekends exclusively live race Vettel could only finish half a second behind the Mercedes as Daniel Ricciardo claimed fourth, with Kimi Raikkonen finishing the session fifth in the other Ferrari.Alonso, who has been passed fit to take part over the whole weekend despite broken ribs, could only manage five laps.Jenson Button, meanwhile, ended the session eighth as McLaren decided to make use of their extra supersofts with rain expected to fall on Saturday.Practice One timesheet1. Nico Rosberg, Mercedes, 1:38.0372. Lewis Hamilton, Mercedes, 1:38.1833. Sebastian Vettel, Ferrari, 1:38.6654. Daniel Ricciardo, Red Bull, 1:39.0615. Kimi Raikkonen, Ferrari, 1:39.1556. Daniil Kvyat, Red Bull, 1:39.6257. Carlos Sainz, Toro Rosso, 1:39.6768. Jenson Button, McLaren, 1:39.9749. Nico Hulkenberg, Force India, 1:40.16910. Max Verstappen, Toro Rosso, 1:40.23211. Sergio Perez, Force India, 1:40.34712. Fernando Alonso, McLaren, 1:40.53813. Valtteri Bottas, Williams, 1:40.82814. Romain Grosjean, Haas, 1:41.35815. Marcus Ericsson, Sauber, 1:41.39316. Rio Haryanto, Manor, 1:41.61417. Jolyon Palmer, Renault, 1:41.81618. Pascal Wehrlein, Manor, 1:42.90719. Felipe Nasr, Sauber 1:42.98020. Kevin Magnussen, Renault, No time set21. Esteban Gutierrez, Haas, No time set22. Felipe Massa, Williams, No time setWatch the Chinese GP weekend - LIVE ONLY on Sky Sports F1. The race starts at 7am on Sunday, with build-up underway from 5.30am. Or watch without a contract for £6.99 on NOW TV. Also See: Hamilton suffers grid penalty Whens the Chinese GP on Sky? Cheap Vapormax Australia . In Europe, top teams seem to be largely happy with their squads after spending nearly $1 billion in the off-season. And although English league clubs are unlikely to splash cash in January, Arsenal and Chelsea could be tempted to strengthen their squads with new strikers. 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Cheap Vapormax Australia Sale . Some will say that Martin is too sensitive while others will say that it is part of the way football is in the locker room. But to have to absorb what was said to him for any rational and intelligent person is too much.TORONTO - Toronto Maple Leafs coach Peter Horachek said captain Dion Phaneuf is week-to-week with an upper-body injury sustained prior to the all-star break.The Maple Leafs confirmed the defencemans injury on their Twitter account.Phaneuf has two goals and 20 assiists along with a minus-4 rating in 48 games this season.ddddddddddddHis injury is another blow to the struggling Leafs, who have lost six games in a row and 14 of their last 17.Toronto is 10 points out of a playoff spot in the Eastern Conference. ' ' '