Motherwell boss Stuart McCall feels his side missed one of their best chances to claim points away to Rangers.
Rangers, without Nikica Jelavic and having lost Kyle Lafferty early in the match, triumphed 3-0 against 'Well.
"Hugely disappointed," McCall told BBC Scotland. "We'll probably not have a better chance in coming here and getting result.
"When you look at it, no Jelavic in the teamsheet, Lafferty gets off early on. But we just weren't at the races."
David Healy fired Rangers ahead before half-time and Sone Aluko doubled the lead before Stephen Craigan's own goal.
McCall said: "Is it the belief? Do we have to score the first goal?
"I've seen plenty of teams come here and play well and frustrate Rangers. Even at 1-0, Rangers have lost late goals.
"If we'd have got the first goal, it would've been interesting to see what would've happened with the crowd and their players. But with them getting it, it gave them a lift and it certainly set us back in our tracks.
"Our big players didn't perform and it was disappointing all round.
"This probably is the most disappointing one I've had even though we've been beaten heavier because I really genuinely believed we could have a chance if we had played at our best, or at least been defensively strong, battling in midfield and creating chances. We did neither of all them three.
"It's just disappointing because I know we've got better players than what we've shown in the last two away games. We haven't done ourselves justice."
Third-place Motherwell lost their last match away to Hearts and are now just two points ahead of the Tynecastle side and St Johnstone in the Scottish Premier League.
"We've done terrifically well up until now," added McCall.
"We just need to get back to our consistence form. I believe we can do that because we've got good players and a good set of lads and they're all disappointed because we've let each other down."