article_snippet: Jenson Button's partnership with driver Fernando Alonso will be delayed from forming after driver Fernando Alonso's crash .
article_snippet: driver Fernando Alonso sustained concussion in a crash and has been ruled out of the first race of the season . '
article_snippet: Button pictured driving McLaren McLaren in winter testing in Catalunya ahead of the start of the season .
article_snippet: Kevin Magnussen will compete in place of Alonso for the season opener in Australia . '
article_snippet: Jenson Button and Fernando Alonso form a new-look partnership at the Woking outfit this season after the Spaniard signed from Ferrari and Button was retained for a fifth campaign.
article_snippet: But Alonso will be absent from the season opener in Melbourne after suffering concussion during a high-speed crash at the final winter test in Jerez.
article_snippet: Alonso will be replaced by Kevin Magnussen.
highlights_snippet: McLaren start the Formula 1 season without driver Fernando Alonso .
  