Frank "Frankie" Andrew Parker (born Franciszek Andrzej Pajkowski of Polish immigrant parents on January 31, 1916 in Milwaukee, Wisconsin, USA – July 24, 1997) was a former World No. 1 American male tennis player. He was coached by Mercer Beasley.
Parker is one of the few Americans to win both the French Championships (1948, 1949) and the U.S. Championships (1944, 1945). Others have been Don Budge (1937), Don McNeill (1939-'40), Tony Trabert (1953-'54), Andre Agassi (1994, 1999).
Writing about Parker in his 1949 autobiography, Bobby Riggs, who had played Parker many times, says "Parker is a tough man to get past. Equipped with a wonderful all-court game, he plays intently and with classic form. His footwork is marvelous. You never see Frankie hitting the ball from an awkward position." Jack Kramer, however, writing in his own autobiography, says "...even as a boy [Parker] had this wonderful slightly overspin forehand drive. Clean and hard. Then for some reason, Frankie's coach, Mercer Beasley, decided to change this stroke into a chop. It was obscene." It also impaired his game, particularly in preventing him from getting to the net, and Parker dropped in the rankings. A few years later, however, he worked hard to regain his original forehand and, according to Kramer, did indeed greatly improve his stroke. But it was never again as good as it had once been.