Chang , seeded second behind defending champion Pete Sampras , took two hours 40 minutes to defeat 186th-ranked Jaime Oncins of Brazil 3-6 6-1 6-0 7-6 , 8-6 in the tiebreaker .
<response> <person>Chang</person> , seeded second behind defending champion <person>Pete Sampras</person> , took two hours 40 minutes to defeat 186th-ranked <person>Jaime Oncins</person> of <location>Brazil</location> 3-6 6-1 6-0 7-6 , 8-6 in the tiebreaker . </response>