Manchester City boss Pep Guardiola praised Sheffield United after Saturday's 1-0 win.
Kyle Walker proved the matchwinner on the day for City.
"Sheffield United are so strong in some areas – stronger than us," Guardiola said. “We played really well in the first half and created a lot of chances, (but) we struggled with scoring goals.
“When you start the second half at 1-0 anything can happen, especially with them being so good at second balls and having the patience for an extra pass.
“They are really good with crosses, they had one clear chance in 90 minutes (Lundstram's), so that is good for us in terms of how we defend but unfortunately when we arrived in the final third we are not as clinical as we were before.
“Nine goals in six games is not enough."
