Manchester United midfielder Casemiro will miss Sunday's clash with league leaders Arsenal due to suspension, but manager Erik ten Hag stayed positive and believes that the Red Devils could beat the Gunners.
After receiving a booking in the 80th minute of the 1-1 draw at Crystal Palace, Casemiro will be ineligible to take on the Gunners, who are eight points ahead in the standings.
When United defeated Arsenal 3-1 in September, he barely played the final 10 minutes.
"We beat them without Casemiro. Now we have to do the same," said Ten Hag. "He's a really important player for us and a reason we're in this position. We were winning, controlling the game, and an unlucky moment. We have to take that and move on and make the best plan for Arsenal."
United are currently in third place on the Premier League table with 39 points.
Following his £70 million transfer from Real Madrid, where he won the Champions League five times, Casemiro, 30, has been a key player in that revival.
United goalkeeper David de Gea, however, accepted that losing Casemiro for the big game is a blow for the 13-time Premier League champions.
"If we want to win in these games, we have to control them until the end. We dropped two points," he said.
"I was pleased with my save in the first half [tipping Edouard's shot onto the crossbar] but the feeling at the end was not so good because we didn't win. It's a big blow to lose Casemiro for Sunday. Now we are missing one of our best players for a big game and it is a big loss for us."