Neil Walker on pace to be activated Tuesday

Pirates infielder Neil Walker is on pace to be activated Tuesday, according to the Pittsburgh Post-Gazette. 

Walker was able to get through a simulated game Monday, after playing nine innings of a rehab game Sunday. Though the club is currently playing in an American League park, Walker is expected to get playing time at second base once he's activated. He's hitting .280/.353/.452 over 239 at-bats.