Click the green button to start and enter the correct answers below
This puzzle contains 25 well-known male tennis stars, some active, some retired. No guessing is required to solve this puzzle, but tennis knowledge is definitely required. To make it slightly easier there are quite a few extra/redundant clues in here (therefore multiple paths to the solution). Note: "Grand Slam winners" means winners of a Grand Slam tournament, as opposed to 'the Career Grand Slam' of winning all 4.
Adjacent includes diagonals. Enjoy!