Originally Posted by bluetrain4
I was under the impression that many pros have equipment-only sponsorships. They're provided with racquets and varying degrees of other equipment, but not paid to endorse the company (hence, the difference between sponsorship and endorsement). That way the company gets a little bit of advertising from the player's use of the rackets, and it also ups the company's percentage of the market,and the players get equipment. It would make sense to provide equipment to lower ranked players - they may not be as visible, but they are seen when playing top players in the early rounds, and if a lot of them are using a certain brand of racket, people see that.
True, thus the OP's question about blacking out the logo.