American qualifier Patrick Kypson pulled off a stunning upset at the ATP Acapulco 500 event on Monday, knocking out second seed and two-time champion Alex de Minaur in a tense three-set thriller. The 26-year-old American, ranked world No. 103 entering the week (his career high), triumphed 6-1, 6-7(4), 7-6(4) inContinue Reading