Possible Clues:

• Two items of clothing for fielder
• Baseball fielder
• US sportsman's flying visit?
• Baseball fielder and items he wears when running?
• Position of US player in two garments
• Baseball player's clothing covers up grass
• American sports player is best to put on sports clothing
• Two articles of clothing necessary for softball player
• Two garments for baseball player
• Two items of clothing for baseball player