This just in from the club:
The Seattle Sounders FC announced today that the Puerto Rico National Team has called in goalkeeper Terry Boss for Caribbean Championship Stage One matches against Anguilla on Saturday and Monday versus Saint-Martin on Monday. Both games will be played in Bayamón, Puerto Rico.
Boss, 29, will miss Seattle's MLS game with Toronto FC on Saturday in Seattle at 12:30p.m. PT. To replace Boss, Sounders FC will use the MLS emergency goalkeeper pool to select a backup for starter Kasey Keller.
Boss has four previous caps with Puerto Rico. He will return to Seattle on Tuesday.
Boss has made three starts in all competitions, the most recent being at Monterrey on September 22 in a CONCACAF Champions League group stage match. He has appeared in one MLS match, as a second-half substitute in a 2-2 draw at Dallas on April 22.
Boss resided in Puerto Rico, playing for the USL-1 Islanders from 2006-07, and that residency made him eligible to play for the national team.