Marin Cilic faces Jack Sock to open Davis Cup quarterfinals
Marin Cilic, coming off an appearance in the quarterfinals at Wimbledon, will face American Jack Sock to open the Davis Cup quarterfinal between Croatia and the United States.
American John Isner and Borna Coric will also play on Friday in Portland, Oregon.
Bob and Mike Bryan face Croatians Ivan Dodig and Marin Draganja in doubles on Saturday.
The reverse singles are set for Sunday.
The winner of the best-of-five series will go on to face the winner of the quarterfinals between France and the Czech Republic in September.
''You pay your dues in Davis Cup. You go on the road and try and get your wins, but you also earn the chance to play at home by playing those matches, too,'' U.S. captain Jim Courier said about playing on home soil.
Cilic, the 2014 U.S. Open champion, is currently ranked No. 12 in the world. Earlier this month, Roger Federer rallied from a two-set deficit to beat Cilic at Wimbledon.
Sock, who is ranked No. 26, won the 2015 U.S. Clay Court Championships. The 23-year-old has been nominated to the Olympic team headed to Rio next month by the U.S. Tennis Association.
Isner is known for playing in the longest professional match in tennis history, a three-day, 11-hour marathon at Wimbledon that he won 70-68 in the fifth set over Nicolas Mahut.
Known for his serve, Isner is currently ranked No. 16. Coric is ranked No. 54.
The draw for the quarterfinals was held Thursday in downtown Portland.
''I think this year is a really good opportunity for us. We can't go more than one step at a time, but it certainly looks promising if we can get through this weekend,'' Courier said at a news conference this week.