Players with lower ranking usually play qualification round before starting official main tournament. This way they prove that they are currently in good players form to battle with higher ranking...
In professional tennis, where HawkEye replay is available to determine whether a ball is in or not using computer technology, a player is given 3 challenges per set, and 1 additional challenge should...
"As many sites (who are trying to sell this merchandise, and thus may have an incentive to stretch the truth) will tell you, tennis gifts, including balls in the form of jewelry and other...