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Barnes and Motte, each of whom have been active in raising and donating funds and giving time toward fighting the disease, made sure the children had a good time by hosting a tour of the Rockies' facility and offering activities throughout the weekend. The Rockies also hosted the medical caregivers and their parents.
"It's good for those kids to get out from the environment they're in, the hospital or rehab or whatever it is and get out here, away from their life back there, have a little vacation -- let everything go away, and just enjoy being a kid," said Barnes, who is dedicated to the cause because his stepbrother, Thomas French, survived a bout with neuroblastoma as a baby.
Motte started the Jason Motte Foundation to fight all types of cancer with his wife, Caitlin, after Caitlin's grandfather, Lynn Doyle, was diagnosed with cancer. Motte said upon signing his two-year, $10 million contract this offseason, he was informed of the Tulowitzki-funded program by Jim Kellogg, the Rockies' vice president of community and retail operations.
Motte and Barnes were happy to help.
"I was like, if there's anything we can do, let me know," Motte said. "When my wife was going through it with her grandfather, we had people helping us. We want to reach out and help others, and show that people care. You're not in this alone."
Thomas Harding is a reporter for MLB.com. Follow him on Twitter @harding_at_mlb, listen to podcasts and like his Facebook page. This story was not subject to the approval of Major League Baseball or its clubs.