Troy Tulowitzki has made noticeable progress recently on his rehab assignment, increasing the likelihood he will rejoin the Rockies this week.

"Each game I've gotten better," Tulowitzki said before going 0-for-4 Saturday for Double-A Tulsa. "I want to get through each day. When I am ready, I will know it."

Tulowitzki's 20-day rehab window closes midweek, so he will have to return barring a setback. But he does not have to be activated.