U.S. soccer team D.C. United may be coming to Costa Rica only 16-players-strong for round 2 against Deportivo Saprissa tomorrow at 8 p.m., according to Washingtonpost.com.

A likely gap in D.C.'s roster is Marcelo Gallardo, who faces sitting out the rest of the season after injuring his knee Saturday during United's 3-0 loss to Chivas USA.

Saprissa can count on some holes of its own. Five of its finest, including Celso Borges and Alonso Solís, are occupied with the national team, la Sele, according to Saprissa's press secretary, Pablo García.

Despite the San José team's 2-0 victory over United in Washington, D.C. last month in their opening CONCACAF Champions League game, Saprissa players are still wary of what's coming.

“It's going to be a tough game,” said Saprissa's Randall Porras, even though “we already beat them once (and) we know how they play,” according to the team's Web site.