(1) “one-by-one” performances (with no physical or psychological contact between opponents during performance); (2) “one-near-one” performances (with only psychological contact between opponents); and (3) “face-to-face” performances (with both physical and psychological contacts between the opponents during performance). Each of these contexts creates specific challenges for athletes and requires specific resources to cope with task demands. Moreover, a competitor can be either an individual athlete or a team. A sport team has specific structural and dynamic features, such as values, cohesion, communication, and leadership. Group processes can either expand or drain the individual resources of team members, thus affecting the quality of practices and achievement level in competition.