Kevin Keen believes West Brom should have beaten Arsenal in the League Cup on Wednesday after they were eliminated on penalties.
The Midlands club took the game at The Hawthorns to extra time when Saido Berahino cancelled out Thomas Eisfeld's second-half opener for Arsene Wenger's side.
Steve Clarke's men then hit the crossbar in extra time with a fierce strike from Morgan Amalfitano, before Scott Sinclair volleyed wide when unmarked in the box.
Those missed chances led to the shoot-out, and West Brom took a slim advantage when Serge Gnabry had his effort saved by Luke Daniels.
But Craig Dawson and Amalfitano fired wide, allowing Nacho Monreal to seal a 4-3 success for the visitors.
And assistant manager Keen admitted it was disappointing to exit the competition in the third round after a spirited display, but urged the team to switch focus to Saturday's Premier League visit to Manchester United.
"I think over the 90 minutes we probably just about shaded it and over the 120 we definitely shaded it," Keen said.
"So to come away without going through to the next round is rather deflating - and the lads are disappointed.
"We have to pick ourselves up and get ready for Old Trafford on Saturday.
"But overall we're disappointed because we’re out of the League Cup for another season.
"The damaging part of extra-time for me was that we had a couple of really, really good chances that on another day you’re finishing every time.
"They were chances to win the game but instead we went to penalties and ended up losing the game."
|Coach: S. Clarke|
for Y. Mulumbu 90'
for S. Long 90'
for S. Berahino 100'
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