Thomas Tuchel feels Chelsea are still lacking in courage and expect more from his team in a 1-0 win over Barnsley in the FA Cup.

Tammy Abraham’s 12th goal of the season after the 64th minute at Oakwell early this morning ensured the Blues would face Sheffield United in the quarterfinals at Stamford Bridge next month.

It was the only accurate attempt to target the London club as Barnsley gave up after being beaten 6-0 by the same opponent in the EFL Cup in September last year.

Tuchel turned to four defenders for the second half, replacing Andreas Christensen – who suffered a head injury – and Marcos Alonso with Antonio Rudiger and Reece James.

The Chelsea head coach has led four wins and a draw since replacing Frank Lampard last month, conceding one goal, but wants to see more of his side.

“The exchanges made it easier for the team to attack and overcome the pressure they exhibited,” he said.

“We started well in the second half and often gave up. We scored and I felt they increased the risk but we decided to be more vigilant.

“Chelsea still lack the courage to show, we can play better, so I expect more from the team.

“If you lack the rhythm and self-confidence and it is displayed on the field, facing opponents who are willing to take risks, it is not an easy thing. We can play better but I refuse to put too much pressure on the team.”