Drastic change Andy Murray has just made ahead of retirement was two years in the making

Andy Murray is trialing a Yonex racket after using head equipment throughout his career.Andy Murray has made a drastic change just months before his retirement as he is trialing a Yonex racket at this week's Bordeaux Challenger. The former World No. 1 has used head equipment for his entire professional career but is trying something new, even though he announced that he would stop playing this summer. But the change appears to be two years in the making, as Murray previously informed Andy Roddick of his intense racket testing methods.Murray is trying to squeeze every last drop out of his career after sharing his plans to hang up his racket this year. The three-time Grand Slam champion is known for having a high tennis IQ, often going above and beyond in his attempts to maximize his performance.Despite being in his twilight, the World No. 77 is doing everything he can to keep improving, and his latest attempts to rediscover his best form involve a dramatic change of equipment.Murray has switched racket brands for the first time in his career, as he has been seen practicing with a Yonex in Bordeaux this week and will use it in his opening match.It's a drastic decision, as even changing the specifications of a racket can have a significant impact on a player's game. But it's not the first time Murray has gone to extreme lengths to put his tools to the test, even if it is his biggest switch-up yet.The Brit has spent at least two years trying to find the perfect racket, using advanced technology to see which model was the most effective when it comes to hitting his shots. In March, retired star Andy Roddick revealed that Murray reached out to him and doubles legend Bob Bryan while conducting a meticulous experiment with his equipment.