Around 9:30 Sunday morning, two figures zig-zagged their way across the grass in right field, sliding in between a series of orange cones that had been laid out just to the left of the foul line.

One of those figures was Phillies athletic trainer Scott Sheridan. The other was Shane Victorino, who left the previous night's victory over the Houston Astros with tightness in his calf in the fifth inning.

After the agility work, Victorino reported no problems in the calf. He said he wanted to play today. Instead, rookie Rule 5 draft pick Michael Martinez will make his major league debut by playing centerfield and batting leadoff.

Although Victorino still feels some tightness in the calf, he said the Phillies are not concerned because the sensation does not appear to originate in the muscle, which would indicate a strain, an injury that can take a lot of rest to heal. Instead, Victorino said, the problem seems to lie in a nerve.

Victorino said he expects to be in the line-up on Tuesday, when the Phillies open a three-game series against the Mets. They are off on Monday.

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