The Italians have a few injury concerns going in to Tuesday's Champions League game

Lautaro Martinez has not been ruled out of Tuesday's Champions League game against Barcelona but Romelu Lukaku will be missing for Inter Milan.

Inter coach Simone Inzaghi said Martinez is not 100% fit after he picked up a slight knock in the weekend defeat to Roma, but he is not injured.

"He has a lot of muscle fatigue," Inzaghi said Monday. "We've done tests and there is no injury, so he will train on Monday and we will take a decision from there. He could start, he could be on the bench or maybe he won't play."

However, as expected, Inzaghi confirmed that striker Lukaku and midfielder Marcelo Brozović will both sit out Barça's visit this week.

Meanwhile, he also revealed that Andre Onana, once part of Barça's academy, will start the game at the San Siro in goal.

Barça and Inter both have three points from their opening two fixtures and Tuesday's match could go some way to deciding who qualifies for the last 16.

"It will be a hard game," Inzaghi added. "Barça are a strong team with a lot of quality. They recover the ball high, in the opponent's half. They're the best in Europe in that aspect.

"They press well. They are a powerful team with and without the ball. And they have (Robert) Lewandowski, who is a great player.

"So we are up against one of the best teams in Europe, a complete team across the pitch, but at the same time it is a great chance for us. We are Inter and the group is open. We have to play with aggression and determination."