Andrew Lambo hit his 27th homer of the year tonight. (Photo Credit: David Hague)

Alex Presley was promoted today to replace Michael McKenry on the active roster. In the last two days the Pirates have replaced Travis Snider and McKenry with Presley and Tony Sanchez. The addition of Presley raised some questions of why Andrew Lambo wasn't promoted.

Then Andrew Lambo hit his 27th homer of the year later in the evening, and those questions came up again.

I don't know why the Pirates decided to bring up Presley instead of Lambo. However, I can think of a few pretty good reasons.

1. Andrew Lambo isn't on the 40-man roster. There is an open spot on the 40-man roster, but that will probably be filled at the deadline. There's the talk that the Pirates are front runners for Brian Wilson....

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