Arrieta expected to make final rehab start

CHICAGO -- Cubs pitcher Jake Arrieta is expected to make his fourth rehab start of the season on Monday, this time with Triple-A Iowa.

"He's doing well," Cubs manager Rick Renteria said of Arrieta, who was at Wrigley Field on Friday. "He'll be here to throw a side and let (pitching coach Chris Bosio) put his eyes on him."

Arrieta had made his previous three rehab starts with Double-A Tennessee, slowly building up his pitch count along the way, getting up to 82 pitches in his last outing on Wednesday. If all goes well, the hope is that Monday will be Arrieta's last rehab start and he'll re-join the big-league club the next time through the rotation.