Former Formula One world champion Jenson Button's future in the sport will be clearer tomorrow.
McLaren have called a news conference for the morning to name their driver line-up for the 2015 season.
Button is vying with Kevin Magnussen for the right to partner Fernando Alonso.
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The Englishman won the 2009 world title but McLaren's lack of competitiveness has seen Button miss out on race victory since 2012.
A third position at this year's Australian Grand Prix is his only podium finish in the last two seasons, with the former Benetton, Williams, Brawn and Honda driver finishing 8th in this season's Championship.
