Federer seeking 6th title at Indian Wells against Del Potro

Roger Federer, of Switzerland, celebrates after beating Borna Coric, of Croatia, during the semifinals at the BNP Paribas Open tennis tournament, Saturday, March 17, 2018, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)

INDIAN WELLS, Calif. — Roger Federer was on the ropes, down two breaks in the second set and another one in the third. Borna Coric thought he was close to toppling the world’s top-ranked player.