The USA women's football team - the reigning world champions - are threatening to go on strike over pay and could miss the Rio Olympics.
Tim Howard says he decided to leave Everton to give himself a greater chance of being picked for the 2018 World Cup.
Double World Cup winner Brandi Chastain is to donate her brain for concussion research.
Argentina will face defending champions Chile in the group stage of the centennial Copa America this summer.
USA Women's boss Jill Ellis has made history by becoming the first British-born coach to win a prize at FIFA's Ballon d'Or Awards.
Former Tottenham and Blackburn goalkeeper Brad Friedel has been appointed as the new United States U19s head coach.