Javier Hernandez has stressed the importance of Manchester United gaining maximum points in their remaining English Premier League matches.
Sir Alex Ferguson's United side were beaten 2-1 by Ajax in the Europa League on Thursday.
They still progressed to the round of 16 courtesy of a 3-2 aggregate victory, but have cause for concern after suffering their fourth home defeat in all competitions this season.
Hernandez, 23, feels United need to learn lessons from the defeat, because they can ill afford to drop more points in the title race.
He told The Daily Mirror: "We cannot afford any draws or losses in the Premier League. We need to learn from the Ajax game because it's not a good feeling."
The league champions travel to Carrow Road on Sunday to take on Norwich City, who are in fine form after keeping clean sheets in their last two home games.
"Now it's Norwich, which will be a difficult game," Hernandez said.
"It's a new ground for me and we're aiming to win to keep the pressure on Manchester City."
"Everyone feels very confident about the Premier League. We will keep doing our best and Manchester United will never give up."
"(Manchester) City are a very good team and that's why there are in first place, but we will fight until the last game."
"Every player wants to defend the title. On Sunday we have a very good test and we want to win it."
Hernandez has been in good form in recent weeks, netting four goals in as many matches, with his tally for the campaign standing at 10.
"The goals motivate me a lot and I'm feeling good at the moment," he said.
"Whether I play one minute or 90 minutes, I will always do my best."