Q: Hey Mark, since we've been getting intimately acquainted with the DL and pitcher rehabilitation this season, what exactly is a "simulated game"? - Jim Mehl, Arlington

A: The simulated game is exactly what it sounds like: an opportunity for an injured player to pitch in game-like conditions. Instead of simply throwing in the bullpen to a catcher, the pitcher faces actual live hitters on the field and approaches them like real at-bats.

Once he completes three "outs," he retreats to the dugout for a few minutes (just like in between innings) and then comes back out to face more hitters in his second "inning." Most guys will usually do this for about three innings or 50 pitches. It's a good exercise for them before they head out on a real minor-league rehab assignment.

Q: It seems like Chad Cordero is back to his old form closing out games. Do you agree, and if so, what's turned it around for "Chief"? - Donald Sanger, Rockville

A: I do agree, and I think the explanation is simple. Cordero has been a new man since taking a week off to visit his grandmother before she died. His mind was understandably preoccupied with thoughts about his family for much of the first month of the season. Once he went to California on bereavement leave, he was able to clear his head and return refocused on baseball. I think his positive results since then are a reflection of that.