London, Aug 10 : Satoshi Shimizu of Japan and Cuba's Lazaro Alvarez lost their respective semifinals in the men's 56kg boxing competition to claim Olympic bronze medals here.
Shimizu succumbed to Britain's Luke Campbell, a 2011 world silver medallist who dominated from the start for a resounding 20-11 victory.
The British southpaw came out strong, mixing up his combinations well and registering several stinging lefts to go 5-2 up in round one.
Shimizu belied his crude style to fare better in the second round but was still overpowered by Campbell and went down 6-11.
Campbell landed some big one-twos in the third round to rock his opponent, who started to clam up with fatigue.
He cruised to an inevitable victory and a gold medal match-up against Ireland's John Joe Nevin.
Nevin, a former world bronze medallist, beat the 2011 World Champion Alvarez, 19-14 in the previous bout.
Nevin came under sustained pressure from Alvarez but managed to stay ahead on points with his greater activity around the ring.
The Irishman won the first round 5-3, the second 7-6 and the third 7-5 to secure a spot in the final. The gold medal match is Saturday.(IANS)