The Phillies beat the Washington Nationals, 10-4, Thursday night, but suffered a significant loss in the process.

Three starts after coming off the disabled list, Cliff Lee had to leave the game with a recurrence of the flexor-pronator strain that cost him two months earlier in the season. His season is likely over.

The victory came several hours after Phillies officials observed a quiet trade deadline.

The Phillies are 48-61, last in the NL East. Washington leads the division at 58-48.