Both sides fielded strong line-ups, with Rebrov, Bobby Zamora and Andy Melville included for the home side. But it was Coventry that struck the first blow of the game, scoring after only three minutes when a long ball caught out the Hammers backline and allowed Coventry's Claus Jorgensen to coolly slot past West Ham goalkeeper Darren Behcet.
From the restart, though, Kevin Keen's side began to dominate proceedings, and up front Rebrov and Zamora started to show their class, combining to play some neat attacking football.
But it was 16-year-old striker Kyel Reid that brought the Hammers level, with a strike that would be a Goal of the Season contender at any level. He picked up the ball in midfield, moved forward with purpose, before unleashing a venomous right-foot drive that smashed into the top corner of the Coventry net, leaving goalkeeper Scott Shearer with absolutely no chance.
Ten minutes later and the Hammers took the lead when Rebrov latched onto Zamora's knockdown and planted a fine left foot finish past Shearer into the bottom corner of the net.
Rebrov and Cohen both shot over the bar in the closing stages of the half, while Coventry's Patrick Suffo had the visitors' best chance to equalise when he narrowly failed to get on the end of a far-post cross.
Coventry came out for the second-half with renewed confidence, and Suffo again went close, while Behcet was forced to block at the feet of a Sky Blues striker who had broken through on goal. Kevin Keen's men still had chances though, and Bobby Zamora should have done better with a close range effort that went over the bar.
Zamora, Melville and Rebrov were all withdrawn in the later stages of the half, as the Sky Blues continued to push forward in search of an equaliser. Craig Reid and Andrew Whing both went close, before finally the resilient Hammers defence succumbed to a fine finish from Suffo, who lashed the ball past Bechet from ten yards out.
Coventry almost snatched a last minute winner, when Behcet was beaten on the angle, but a goal line clearance from Jemel Henry ensured that it would end 2-2.
Kevin Keen said: "In the first-half we did very well and deserved to be in front. Sergei and Bobby looked good in attack, and Kyel Reid's goal was a fantastic strike, one of the best I've seen at this level.
"Coventry came back at us in the second-half, and we had to cope with some blustery conditions. We defended very well in the second-half, especially at set pieces, but were undone in the end by a great finish.
"We had some breakaway chances late on, but it was a very good game and I think a draw was a fair result."
WHU: Behcet; Henry, Blewitt, Ward, Melville(Bunce 74),Wright, Pearson, Cohen, Zamora(Ashikodi 74), Rebrov (Sofiane 78), Reid. Subs unused: Reed (GK), Stokes.