#2 Ivan Rakitic
Ivan Rakitic has been linked with a move to Manchester United in this transfer window. The talented midfielder is likely to lose game time to new signing Frenkie de Jong at Barcelona and hence, the talented player could be on the move this summer.
Apart from his experience on the field, Ivan Rakitic is a proven leader too. He was Sevilla's captain in the 2013-14 season and did well for the Spanish club. He helped his team lift the UEFA Europa League trophy that season thereby proving his credentials as a captain.
If Manchester United can sign the Croatian in the summer, they will be helped by the leadership skills in this player. Although he might not be announced as the captain immediately, Ivan Rakitic could definitely address the captaincy issues at Manchester United after he settles down at Old Trafford.