WASHINGTON (AP) -The Nationals say No. 1 draft pick Stephen Strasburg has a dislocation in his left knee joint and should be fine for spring training.

Strasburg was examined Friday by Dr. Lewis Yocum in Los Angeles. The Nationals say Strasburg will not require surgery, and that treatment will include rest and physical therapy.

The San Diego State right-hander twisted his knee during a workout Thursday and has been scratched from his start in the Arizona Fall League championship game.

Strasburg also was held out of a scheduled start in the Arizona Fall League Rising Stars game Nov. 7 because of a strained neck muscle.

Strasburg signed a record $15.1 million contract after being the top pick in June's amateur draft.