Merry Gronk-mas! Rob isn't too hurt to spread cheer

Awww, Rob Gronkowski is just one giant softie.

The Patriots tight end is still confined to a wheelchair as he recovers from knee surgery, but that's not going to slow him down. Gronk dressed up as an elf and joined Santa Claus (aka running back Stevan Ridley) to visit patients at Boston Children's Hospital.

Check out his introduction:

It's hard not to love the impact he has and the smiles on the kids' faces. Here are some more highlights from his visit: