Roger Federer's career-long association with Nike appeared to be over on Monday (July 2) as the Wimbledon champion walked on to Centre Court to open the defence of his men's singles title wearing a Uniqlo branded outfit.

Uniqlo, which outfitted Novak Djokovic before the Serbian tennis star signed a deal with Lacoste past year, announced Federer as its new "Global Brand Ambassador" on Twitter.

The report also noted his deal with Nike expired at the start of March, and was given the chance to match Uniqlo's offer and declined.

Federer, who had been wearing Nike since 1994, will continue wearing their shoes as Uniqlo does not make sports footwear.

His deal has been widely estimated to be worth $300 million over 10 years, compared to the $10 million he was reportedly making each year from United States heavyweights Nike.

This switch also means that Federer won't be able to sport the "RF" logo as it officially belongs to Nike. They featured his "RF" logo, the London skyline and the number "8, ' signifying his record number of Wimbledon titles, embossed in gold".

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One fan, Joan Keevill said: "I think you got that wrong, BBC Tennis!"

Despite the separation from Nike, Federer is still wearing personalized Nike shoes that include an updated logo just for the 2018 Wimbledon Championships.

ESPN reported Federer's earnings on-court are around $116m, making this new deal more than double his current tennis paycheck. The good thing is it's not theirs forever. "In a short period of time, it will come to me".

A press release was provided, stating the 20-time Grand Slam champion will wear Uniqlo at tournaments throughout the end of the year.

Federer has joined Uniqlo with a new deal that is reportedly worth over $300 million.

"This week was very much for me just to recover, come in fresh for tomorrow [Monday]".