McClellan, who owns a 1-year-old golden retriever, is one of several Cardinals who own dogs and support Stray Rescue of St. Louis, a group that helps stray rescued dogs find good homes in the St. Louis area.
Last month, Albert Pujols and Chris Carpenter were among the players fighting over a 140-pound English mastiff that was eventually adopted by catcher Jason La Rue.
"I would have never thought that the dog we got, what she brought to me and my wife, just the love she has, just the friend she is," McClellan said. "So hopefully a lot of those dogs that haven't had such good loves can find a good home."
Cardinals manager Tony La Russa, an avid animal lover, started the Animal Rescue Foundation in 1991 to help stray animals find homes, and his love for animals seems to have rubbed off on the rest of the clubhouse.
And McClellan hopes that others in the St. Louis area will join in and adopt a rescued dog both for their benefit and the dogs'.
"[Stray Rescue of St. Louis] has over 200 dogs that are currently looking for homes," McClellan said. "They only do dogs that are found on the street. The one that was in here today had a big acid burn on his side because his owners threw acid on it, and you go to pet it and it gets a little scared. It's just sad that people would do that to dogs.
"So we're just trying to get awareness out there because there are dogs that need homes. There are a lot of good dogs that are stuck in those cages that could do a lot of help to some families."
B.J. Rains is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.