You’ve seen Guinot (and Mary Cohr) patches on a lot of players on center courts at Grand Slams. Svetlana Kuznetsova has won two majors wearing it.
Guinot Mary Cohr, the French skin care and beauty products company, remains unknown to most tennis fans outside that country.
But after years of these one-day, no-commitment deals in high-profile matches, Guinot has signed a player to a longer-term sponsorship patch deal.
Kevin Anderson will wear the patch in London, and throughout 2019.
The NY Times had an interesting piece on the Guinot patch strategy last year.