Yankees 3B Rodriguez runs bases in Tampa

New York Yankees third baseman Alex Rodriguez speaks to the media about his rehabilitation progress following a rehab workout Thursday, Aug. 4, 2011, in Tampa, Fla. Rodriguez's publicist says the he is looking forward to cooperating with Major League Baseball in its investigation of his alleged involvement in illegal poker games. (AP Photo/Brian Blanco)

August 9, 2011 12:06:20 PM PDT
New York's Alex Rodriguez was upbeat after running the bases for the first time, a key step in his rehab program after right knee surgery.

The Yankees third baseman ran from first to second and first to third four times each during his workout on Tuesday in Tampa, Fla. Base running is usually the final step before an injured position player starts in minor league games.

The Yankees expect Rodriguez to return in mid-August.

The session Tuesday was moved from the Yankees' minor league complex to their spring training site at George Steinbrenner Field for the second straight day because of rain.

Rodriguez hit off a tee and did a soft-toss session in an indoor cage. A break in the weather allowed the ground crew to take the tarp off the field so Rodriguez could run and field grounders.