The Copa del Rey, the Spanish cup competition, kicks off on Wednesday with six La Liga teams, including Atletico Madrid, taking the field against lower league clubs. Atletico, looking to avenge last season's semifinal loss, faces a team from the sixth tier of Spanish football. Other La Liga teams are also expected to have smooth sailing, but must follow the rule that requires seven first team players on the pitch at all times. This is an opportunity for them to gain some confidence and momentum before returning to league play.