After a seven-month search, the U.S. Tennis Association on Monday will name a successor to Patrick McEnroe as general manager of player development: Martin Blackman, who worked for the USTA under McEnroe for two years before leaving to start his own tennis academy.

Blackman, 45, was a top junior who trained alongside Andre Agassi and Jim Courier at Nick Bollettieri’s tennis academy. At Stanford, he was Patrick McEnroe’s doubles partner. After six years on the pro tour, he became a college coach, and helped build the Junior...