[DATEBOOK] The Seattle Sounders announced plans to host Argentina’s Boca Juniors and Scotland’s Celtic in a pair of exhibition matches.

D.C. United has scheduled a match against Celtic rival Rangers in July.

Celtic and Rangers are negotiating to renew their Old Firm rivalry in the United States during their summer stays in the United States.

May 19 -- New England Revolution vs. Benfica
May 19 -- Chicago Fire vs. Paris SG
May 19 -- Red Star Belgrade vs. Legia Warsaw (at Toyota Park)
May 22 -- Chicago Fire/Paris SG loser vs. Red Star Belgrade/Legia Warsaw loser
May 22 -- Chicago Fire/Paris SG winner vs. Red Star Belgrade/Legia Warsaw winner
May 23 -- Montreal Impact vs. AC Milan (at Olympic Stadium)
May 23 -- New York Red Bulls vs. Juventus
May 23 -- Los Angeles Galaxy vs. Boca Juniors
May 26 -- D.C. United vs. AC Milan
May 26 -- Seattle Sounders FC vs. Boca Juniors
May 30 -- Chicago Fire vs. AC Milan
June 2 -- Montreal Impact vs. Fiorentina
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July 18 -- Seattle Sounders FC vs. Celtic
July 24 -- D.C. United vs. Glasgow Rangers