MIAMI (Reuters) -Boca Juniors players Ander Herrera and Nicolas Figal were handed four-match bans by FIFA after being sent off in their Club World Cup opener against Benfica, a spokesperson for the Argentine club told Reuters on Wednesday.

Boca disagreed with the sanctions imposed on their players after Benfica's Andrea Belotti received a two-match ban for catching Ayrton Costa in the head with a high boot in the 72nd minute.

"We have already contacted FIFA to submit an appeal," said the club spokesperson.

Spanish midfielder Herrera, who was subbed off due to a muscle injury, was shown a red card in the 45th minute after protesting to Mexican referee Cesar Ramos from the bench over a penalty awarded to the Portuguese side.

Defender Figal was sent off in the 88th minute with a straight red card for a foul on Florentino Luis when the match was tied at 2-2.

Boca will face Bayern Munich at Hard Rock Stadium in Miami on Friday in their second match in Group C.

(Reporting by Ramiro Scandolo, writing by Janina Nuno Rios; Edited by Javier Leira and Toby Davis)