KANSAS CITY, Mo. – Kansas City Chiefs quarterback Patrick Mahomes was on every call involving the NFL Players Association and took a significant role in putting in place the return-to-play protocols for training camp.So while he acknowledges “some risk” in returning to the team facility on Saturday, when Mahomes joined rookies and select veterans for the start of his camp, he also felt comfortable in knowing the environment would be as safe as possible.“I think the NFLPA did a good job getting all the players on the call and being prepared to be in the building and everything that entailed,” said Mahomes, who like the rest of NFL players did the entire offseason remotely. “They're really taking this thing seriously.