Taylor Phinney (Team BMC) suffered a mild concussion when colliding with Andrew Talansky (Garmin-Cervélo) at a training ride in Italy.

The two riders were training together when they suddenly crossed wheels while making a turn.

"We kind of got jumbled. It was a freak accident," Phinney said. "The next thing we knew, we found ourselves flipping over our bikes and onto the ground. All I remember was smacking my head pretty hard."

He could ride home, where he had a medical examination over internet.

"We did some simple tests for balance and coordination over Skype, which he passed," Team BMC's team doctor Max Testa says. "Now we're just monitoring him closely."

He will take it easy for some days now, but will soon be back on his bike.

"If he's feeling OK on Saturday, we'll see if he can spin on the trainer without developing a headache and then we'll go from there. We will need some time to fully evaluate the extent of the crash and then we'll make a decision on how to organize his training and racing."