WASHINGTON -- Chien-Ming Wang and the Washington Nationals have agreed to terms on a one-year contract, the team announced Friday.

Wang's new deal is worth a guaranteed $4 million, with performance bonuses included, a baseball source told ESPN Insider Jim Bowden.

Wang went 4-3 with a 4.04 ERA in 11 starts for Washington in 2011. Relying primarily on his trademark sinker, he struck out 25 batters and walked 13 in 62 1/3 innings.

"I am elated that Chien-Ming Wang will be with us in Washington again in 2012," Nationals general manager Mike Rizzo said in a statement. "I was very pleased with his progress and overall production last year and am anxious to see what he can do with a completely healthy offseason at his disposal."

Wang returned to the majors July 29, exactly two years after surgery on his right shoulder. Until then, Wang hadn't appeared in a big league game since July 4, 2009, when he was with the New York Yankees, for whom he twice won 19 games in a season.

Wang is currently in Taiwan, pitching for the national team against a collection of major league players.

Wang's agent and the Nationals had been talking about a deal to bring him back to the club, which already had given the right-hander two one-year contracts in his comeback from the shoulder operation. Wang played under a one-year contract that was worth $1 million plus incentives in 2011.

Late this past season, Wang indicated he wanted to return to the Nationals, saying through a translator: "I really appreciate their patience the last two years. Hopefully in the future I can win more games for them."

By re-signing, Wang remains in a rotation that is expected to be led by right-handers Stephen Strasburg and Jordan Zimmermann, and could include lefties John Lannan and Ross Detwiler.

In other news, the Nationals announced that infielder Brian Bixler was claimed off waivers by the Houston Astros.

Information from The Associated Press was used in this report.