One sweeper went down with a swollen ankle an overuse injury but was cleared by a doctor after sitting out a match.

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Teixeira blamed his injury on "overuse, " and said he would cut back on his work load in the batting cage going forward.

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The injury isn't hereditary and isn't related to overuse, said Larry Bramlage, the on-call veterinarian representing the American Association of Equine Practitioners.

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Harrison divides most sport injuries into two main area -- traumatic where a frank injury has occurred (i.e. a fall while skiing) or overuse injuries where over time there has been wear and tear on the body.

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