one who is bad at athletics, one who has poor athletics skill

a ball game (game played with a ball)

bad (at), poor (at), weak (at), uncomfortable with / hard to get along with (of a person)

weak point

tone deafness; being tone-deaf / (only in compounds) incapability, ineptitude, weakness

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

athletics, exercise / (politics) movement, drive, campaign / (physics) movement

exercise, work out