London - Former Wimbledon champion Andy Murray has signed a four-year deal with American sportswear manufacturer Under Armour.
The deal was announced on Tuesday by the Baltimore-based company. Terms were not announced, but British news reports said the deal was worth $25 million.
Murray previously had a four-year sponsorship deal with adidas. He started his career wearing Fred Perry clothing.
Murray won Wimbledon in 2013 and the US Open in 2012. He is currently ranked No 6 in the world.
Under Armour also sponsors English Premier League club Tottenham.