PITTSBURGH -- One week after being knocked out of the most meaningful part of the season by lower-back tightness, Pirates second baseman Neil Walker has finally been cleared to conservatively resume baseball activities.
The hope is that Walker could return to the lineup by this weekend.
Walker was due to play some catch Monday morning and swing the bat in the indoor cage, and also pick up his running along with other agility drills. If he comes through these steps without setbacks, he would begin taking ground balls on Tuesday.
"He's got a chance to be back on the field by this weekend," manager Clint Hurdle said.
In Walker's absence, the Pirates have alternated Josh Harrison and rookie Brock Holt at second base. Holt got his second straight start in Monday afternoon's opener against the Astros, after going 2-for-4 with an RBI on Sunday in Milwaukee.
Harrison, who shifted to shortstop on Sunday, was out of the lineup Monday as veteran Clint Barmes returned to his post. In seven consecutive starts, Harrison went 8-for-27 (.296) and also contributed a memorable play when he crashed into St. Louis catcher Yadier Molina attempting to score a run early in the Pirates' 9-0 victory last Tuesday.