Your pup is very,very cute please be careful about having him catch the ball in the air you do not want him to do flips ect may damage the growth plates in his bones a growing pup must be careful not too agresive moves when playing you do not want OCD nor any Hip problems down the road. just think he will grow into thse ears.
Do not know what you know & do not know I always advise people with going to be big dogs to feed from a stand when they get big you do not want gastric tortion bloat.