This after Gonzalez had a plasma injection on Wednesday in an attempt to alleviate nagging pain in the hamstring, which has given the infielder fits for weeks.
"I'm feeling a little stronger, ready to go and get to play again," Gonzalez said.
Porter said he wanted to use Monday's off-day as a recovery day for the shortstop to assess his physical state following a likely Sunday return.
"Marwin actually could play [Saturday], but when I looked at it, having the off-day on Monday and him getting an extra day today, I wanted him to play tomorrow and have off on Monday," Porter said. "He'll be able to have a good feel for where he is physically."
Prior to the injury, Gonzalez had a four-game hitting streak and had raised his average by 12 points since the All-Star break.