If Zambrano has an elbow injury, it would manifest itself in a loss of command, an inability to throw pain-free breaking pitches, and/or an alteration of his mechanics. I'm seeing all three of those things to one degree or another. He's also acting much differently than he usually does... no staring, no stalking around the mound, and no bouncing around like a meth fiend at a trampoline party. He is still showing his usual velocity, which would seem to indicate that the injury isn't that severe, but pitchers have been able to pitch through serious elbow injuries in the past (the best example off the top of my head is Scott Williamson, who pitched last season with a torn ulnar collateral ligament and several bone chips in his throwing elbow - his doctor commented after the surgery that his elbow looked like a grenade went off inside it). If I had to guess, I would think Zambrano has "tweaked" either his UCL or the flexor tendon in his forearm/elbow. That could mean either a strain (a slight tear) or a full-on tear, although I doubt he'd be able to pitch through that (not unheard of, but unlikely). He could have torn some scar tissue, too, but I don't think Zambrano has had arm surgery recently (if ever). I'm not a doctor, obviously, but I can't think of anything else that he could have done on that pitch in the first. I hope they give him an MRI after the game and keep a close eye on him... they've already made a ridiculously poor decision, so best not to compound it even further just because his velocity remains normal. ~Bill