By Ross Kelly, CBS Local Sports

The final week of the MLB season is always an interesting one. Of course, there is the on-field action as the battle for the final playoff spots heats up. But this time is also one in which teams have some fun with their teammates – both old and young.

Over the weekend the Giants poked fun at Tim Hudson, the 40 year old pitcher who is retiring at season’s end. The entire Giants team dressed up like Huddy for their final roadtrip which included typical dad-gear.

Then, it was the rookies turn. For their final roadtrips, both the Mets and Twins decided to dress up their rookies (and there are a lot of them after September call-ups). The above picture was taken after the Mets game vs. the Reds and the below video is of those rookies (and their Underoos) walking back to their hotel. So if you were walking the streets of Cincinnati yesterday and wondered why you saw a dozen guys in their underwear, there’s your answer:

The Twins rookies also partook in the tradition. Eduardo Escobar uploaded a pic to his Twitter account of the rookies either boarding a plane or just after exiting one and they appear to be wearing singlets:

The guy in black should consider doubling up on leg day. But it could have been worse, you could have been a fan in attendance when 62-year-old Bill Walton decided to commentate a Pac-12 game in a singlet.

Ross Kelly is an Associated Producer for CBS Local Sports. He is from Louisiana and is a fan of all sports, but not of any teams (except LSU). He can be reached at ross.kelly@cbs.com.