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Orioles rookie Chris Tillman is about to take the mound for his third major league start, which still is way too early to draw any conclusions from the results, but I'll be watching to see if he backs off a bit on the velocity in favor of more movement on his fastball.

I'm sure I'm not the only one who has noticed that his fastball is straight as an arrow when he throws it in the 93-94 mph range, so I'm wondering if pitching coach Rick Kranitz will try to get him to relax a little more on the mound and let the ball do more of the work.

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When you've got talent like Tillman's, it's not hard to dominate minor league hitters with a high-velocity fastball and decent breaking stuff, but it takes a little more nuance than that in the big leagues. He can be effective with the stuff he took out there the first two times, but his command will have to be very, very good to dominate major league hitters without more movement on the ball.

Lots of local interest in today's afternoon game at Rogers Centre. Blue Jays rookie Brett Cecil, who hails from Dunkirk, MD, has won five of his first six major league decisions.

Instant update: I'm not sure what to make of this, but the MASN pitch clocker has Tillman throwing in the mid-80s in the first inning. That's not quite what I was talking about. I was thinking more like 89-91 mph. It's possible that the Toronto radar gun is off, but this is a little bit unsettling.

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