Button pulls out of triathlon with leg injury 29 April, 2014 Jenson Button withdrew from a triathlon on the Canary Islands last weekend. The McLaren driver, participating in the event at Fuerteventura in the gap between the Chinese and Spanish grands prix, completed the 1.9 km swim and 90 kilometre bike ride without trouble. But Button, 34, pulled out during the half-marathon with ‘muscle problems’ in his leg, according to specialist media reports. With less than two weeks until the Spanish Grand Prix at Barcelona, McLaren have been contacted for comment. (GMM) Subbed by AJN.