Cardinals' Sam Tuivailala: Rehab assignment looming

Tuivailala (knee) will likely head for a rehab assignment sometime next week according to Cardinals president of baseball operations John Mozeliak, Steve Overbey of MLB.com reports.

Tuivailala headed to the disabled list last Saturday with a knee strain, but it appears his recovery is going well. The right-handed reliever has generated a 4.50 ERA across four innings over four appearances thus far this season.