Patrick Mahomes ain't just the best player on the Chiefs, he might be the top teammate too ... 'cause he went to epic lengths to make sure star rookie Xavier Worthy didn't lose his first-ever NFL touchdown ball.
Check out the quarterback's actions following Worthy's 21-yard scamper to the endzone in the first quarter of Kansas City's season-opening win over Baltimore ... No. 15 barely celebrated the six points -- and instead, raced toward an official.
Mahomes had apparently realized the 21-year-old dropped the pigskin in the big moment .