Sheffield United assistant manager Stuart McCall says there's "no excuses" after their Carabao Cup defeat to Lincoln.
With the match ending 0-0, the second round went to a penalty shootout, with Jensen making two saves before United's Jon Egan missed his spotkick to leave Lincoln 3-2 winners.
McCall said: "No excuses - it was a flat performance. It would be easy to say it was on the back of Sunday and having a full house against Man City. We discussed that before the game - we have to make our own atmosphere.
"Lincoln brought a good contingent, filled their end and got behind their side. It's not to take anything away from Lincoln. They were good and you've got to give them credit. They defended really well in their shape and were hard to break down but we've got to be creating more than that.
"The manager summed it up at the end - we were bored watching it. That's how we don't want our teams to play; we want to be on the front foot, creating chances and getting balls in the box."
