types:
acróbata
an athlete who performs acts requiring skill and agility and coordination
alpinista,
escalador
someone who climbs as a sport; especially someone who climbs mountains
gimnasta
an athlete who is skilled in gymnastics
saltador
an athlete who competes at jumping
olímpico
an athlete who participates in the Olympic games
pentatleta
an athlete who competes in a pentathlon
corredor
a trained athlete who competes in foot races
reserva,
suplente
an athlete who plays only when a starter on the team is replaced
nadador
a trained athlete who participates in swimming meets
tenista
an athlete who plays tennis
defensa
(football) a person who plays in the backfield
central
(ice hockey) the person who plays center on a hockey team
buzo
someone who dives (into water)
pateador
a player who kicks the football
lanzador
(baseball) the person who does the pitching