The towering American moved one big step closer to the most prestigious title of his 14-year career by beating a weary Juan Martin del Potro 6-1, 7-6 (2) in Friday’s semifinals.
Seeded No. 14, Isner is 0-3 in ATP Masters 1000 finals. His opponentSunday will be No. 4-seededAlexander Zverev of Germany, who beat No. 16 Pablo Carreno Busta of Spain, 7-6 (4), 6-2, in the other semifinal.
Dominating with his serve and aggressive baseline strokes, the 6-foot-10 Isner ended a 15-match winning streak for del Potro, who won Indian Wells two weeks ago by beating Roger Federer in the final.