Bohemians 0 Sunderland 1
Substitute Stern John showed €5m signing Michael Copra where the goal was as Sunderland got their Irish tour off to a winning start at Dalymount Park.
Chopra seemed set to finally break the deadlock on 65 minutes, but somehow shot Carlos Edwards' cross off the bar from six yards.
Chopra looked set to score again on 72 minutes but his goal bound shot struck David Connolly and looped over the bar.
John then came on and won it on 78 minutes when out-jumping Bohs keeper Josh Mimms to head home Ross Wallace's cross.
John should have added a second on 82 minutes but blazed over the bar with only Mimms to beat.
Irish international Paul McShane had a fine debut with excellent block tackles to deprive Darren Mansaram in each half while he showed his threat form set-pieces to head narrowly wide from Kieron Richardson's corner on the hour mark.