Venezuela defeated Jamaica 1-0 in a physical Copa America Centenario clash here Sunday that saw the Reggae Boyz reduced to 10 men while coach Winfried Schaefer was expelled from the dugout.

Jamaica, riding high after a shock friendly victory over Copa America champions Chile in a warm-up last week, were left ruing a string of missed chances against their South American Group C rivals.

And in blazing hot sunshine at Chicago's famous Soldier Field Stadium, Jamaica made life difficult for themselves with Rodolph Austin sent off midway through the first half for a rash challenge on Tomas Rincon.

By that stage Jamaica were already trailing 1-0 after a sloppy clearance from Michael Hector gifted possession to Venezuela around 30 yards from goal.

A swift series of one-touch passes culminated with Josef Martinez being played into space, and the Torino striker duly tucked away a low finish beneath the advancing Andre Blake to make it 1-0 after 16 minutes.

Jamaica had their chances to score, with JeVaughn Watson heading against the cross bar from Garath McLeary's corner after only 11 minutes.

The circumstances surrounding the apparent expulsion of Jamaica's veteran German coach Schaefer remained unclear.

He was seen in a lengthy discussion with the match officials just before the start of the second half before being ordered to watch the remainder of the game from the stands.

Although down to 10 men, Jamaica continued to great chances, Michael Hector clipping the outside of the post on 49 minutes with a fine curling shot from distance.

Venezuela almost doubled their lead in the 70th minute only for Wilker Angel's powerful diving header to be parried away by Blake.

Jamaica had started the game without Leicester City star Wes Morgan, with reports in Kingston quoting Schaefer as saying he was still tired from celebrating the Foxes' fairytale Premier League triumph.

Morgan however appeared from the bench in the 40th minute, replacing the injured Kemar Lawrence.