I'm curious of the 5/10 rule, as well. From Wikipedia [yeah, kinda lazy this morning] "5/10 Rule whereby players who have been with a club for 5 consecutive years and have been a major league player for 10 years cannot be traded without their consent." How about exposed to Expansion Draft? Why would an Expansion Team select Mauer? Veteran presence with only 2 (?) years left on contract? Edit: Adding that, from the expansion team perspective, I personally wouldn't do this. I'd go after all the young prospect I could corral.