Manchester United manager Louis van Gaal blasted his side’s the lack of killer instinct following the Capital One Cup exit.

It’s really a disappointing defeat for Louis van Gaal, after the kick out of Arsenal and Chelsea just before the night. The United boss may also regret why he didn’t pick Ander Herrera or Bastian Schweinsteiger in the midfield to orchestrate more effective attacks in front of a well organised away team.

On the other hand, Aitor Karanka’s Middlesbrough defended extremely well, often sending two or three defenders whenever there was a Manchester United attacker nearby, and looked to cause trouble when going forward. Centre-back Daniel Ayala should be thanked and praised particularly for keeping Anthony Martial harmless. United also didn’t help themselves starting in a sluggish manner and a series of misses in extra time.

But a disappointed and frustrated Manchester United boss still believes the match shouldn’t have gone that much distance, as he admitted, they had all the chances to wrap up things convincingly inside 90 minutes.

Louis van Gaal specifically lamented the Red Devil’s poor attitude in front of goal, “We have to solve this problem.

“Against Manchester City, we had more chances than City and we have to finish one of those chances. We didn’t create so much against City as we did today, but we have to finish. A lot of players were in finishing circumstances and didn’t do it.”

“Not one player but more players so that’s a little bit frustrating. But it’s like that and we have to continue.

“We are very disappointed. We could have finished so many of our chances so easily, and we didn’t do it, so it’s very disappointing.”

Van Gaal also insisted his side should start to force their own luck rather than waiting for a miracle.

He said, “Last year, we were out of this cup already, in the first match, 4-0 [defeat to Milton Keynes Dons]. Now we are in the final 16 and we had to win. But, okay, we were not lucky.

“I have to say you have to force the luck. Against Manchester City, we were also not lucky but I cannot repeat that every week that we’re not lucky.

“You have to force the luck.”