He partnered Luke Jensen to win the French Junior doubles and the USTA Boys ' 18 National and Clay Court titles in 1984 .
As a junior , McEnroe reached the semifinals of Wimbledon and the US Open boys ' singles in 1983 .
McEnroe partnered Luke Jensen to win the French Junior doubles and the USTA Boys ' 18 National and Clay Court titles in 1984 .
As a junior , McEnroe reached the semifinals of Wimbledon and the US Open boys ' singles in 1983 .