Encouraging signs from Morneau should be tempered

[KSTP TV, February 22, 2011] Dr. Budd Renier, at Allina's Cambridge Medical Center, helps athletes who have suffered a concussion.

Renier says the fact Twins' First Baseman Justin Morneau was out on the baseball diamond Tuesday is encouraging.  But he says Morneau and other concussion victims have to go through a battery of tests in order to be cleared to play.

Renier says there are no shortcuts when it comes to coming back after a concussion. Watch the full story below.