Second baseman Reese Havens is back in action in the Mets' farm system after offseason rib surgery, and he returned with a bang.

Havens (Bishop England High School/USC) went 2 for 3 with two doubles and two RBIs in his 2011 debut for Class A St. Lucie on May 22, and is now with Class AA Binghamton in the Eastern League.

In four games since his return, the 2008 first-round draft pick is batting .308. In 32 games last year at AA and A, Havens hit .312 with nine homers.

Around the bases

--Second baseman Bryan Altman (The Citadel) has been called up to AA San Antonio in the San Diego Padres' system after a stint in extended spring training.

--Pitcher Heath Hembree (College of Charleston) continues to light it up as a closer at Class A San Jose for the Giants. Hembree has his ERA down to 0.48 with 16 saves in 18 2/3 innings. He's struck out 33 against nine walks.

--Infielder Jeff Baker (Clemson) has revived his career the last two seasons with the Cubs, but has been sidelined recently by a groin injury.

Baker, a fourth-round pick in 2002 by the Rockies, is batting .372 this season, including an astounding .525 against left-handed pitchers. He was injured last Sunday against the Boston Red Sox.

--Pitcher Bobby Parnell (Charleston Southern) is on a rehab assignment at Class AAA Buffalo for the Mets. Parnell had a circulatory problem in a finger on his throwing hand and has a 3.68 ERA with three walks and eight strikeouts at Buffalo. For the Mets this season, Parnell is 0-1 with a 6.14 ERA.

--Pitcher Tony Sipp (Clemson) has been a key part of the Cleveland Indians' resurgence this season. Sipp is 2-0 with a 1.27 ERA in 21 1/3 innings for the Indians. "He's been getting every lefty out in the world," Red Sox manager Terry Francona said of Sipp recently.