Walker (foot) will not make his scheduled start Friday but the team believes he can avoid a DL stint, the Tacoma News Tribune reports
An MRI on Tuesday revealed Walker's dealing with posterior tibial tendinitis, which is aggravated every time he pushes off the rubber while delivering a pitch. The issue has cut short Walker's last two outings, but the Mariners seem to think that with proper treatment, the right-hander will be able to return to the rotation early next week.