Twitter reacts as Frank Lampard's Derby knock Manchester United out of Carabao Cup

Manchester United continued its bad run of games as Frank Lampard's Derby County shocked former manager Jose Mourinho by knocking the Red Devils out of the Carabao Cup on penalties.

The Rams beat Mourinho's side 8-7 on penalties after the teams had drawn 2-2 at full time.

Juan Mata opened the bank for United within five minutes of the game but the Rams quickly equalized with a fantastic free-kick from Liverpool loanee Harry Wilson.

Things took a turn for the worse for Mourinho's side as United goalkeeper Sergio Romero was sent off for handling outside of his penalty area in the 67th minute. This prompted Mourinho to give former Derby goalkeeper Lee Grant his competitive debut for the Red Devils.

The Rams were soon ahead again after Jack Marriott scored in the 85th minute, a goal that was initially thought to be the winner. The goal marks Marriott's first goal for the club.

Hopes of an easy win for Lampard's side were squandered when Marouane Fellaini came off the bench to score a last-gasp header to help the 10-man hosts level up against their opponents.

The game went to penalties which saw both sides executing effective spot kicks. After 15 successful penalties, however, United's Phil Jones missed his effort to give the Championship side the 8-7 win.

United have now lost three games in all competitions and the exit from the Carabao Cup puts even more pressure on Mourinho whose side dropped more Premier League points last Saturday in a draw against the Wolves at home.

Speaking to Sky Sports after the win, an elated Lampard said, "I'm shell-shocked. What a performance."

"To go down early at Old Trafford and play as well as they did was superb. We had the personality to take penalties and play the way we did. I am a proud manager."

"It was the easiest selection I have had, the players were superb against Brentford [in Saturday's 3-1 Championship win] and they deserved the chance to play at Old Trafford."

"I wanted to bring a team who could really compete. I am so proud of them. I am trying to build a group to be successful and nights like this are incredible. To go against world-class players and play that way, it's right up there."

Twitter has since exploded with reactions to the victory:

Lampard just moved into the management world and he has kicked off his transition to a great start as Derby County have earned 16 points in the opening 9 games of the Championship season.