Good question. I'm not an expert but you could def. see the jockey pulling Barbaro's head hard to the right to get him to slow down and exit the track for help.
Yes, he was so bouncy and seemed so obviously excited to race. The commentators were noticing that too. That's what's so heartbreaking about this, he really wanted this and to think of what could have been.
Like my DH said after watching the race, "Barbaro would have blown them out of the water!"
When I saw him going off injured, I thought it may just be a sprain. But then seeing him holding that leg up in the air and the trainer and jockey embracing.......that's when I started to cry.
I'm checking comcast sportsnet (Phillies game now) and ESPN periodically. If anyone has an update, please post.