STEFAN Johansen believes Celtic have learned lessons from their Europa League double header against Inter Milan they can use to their advantage in the race for the SPFL Premiership.

Johansen was devastated after the Scottish champions crashed out of the Europa League with a 1-0 defeat to their Serie A opponents in the San Siro on Thursday night.

However, the Norwegian midfielder is confident Ronny Deila's side, who take on second-placed Aberdeen in a league game at Parkhead tomorrow, will channel the disappointment they feel positively.

"I think it does only make us more determined," he said. "We desperately wanted to get through, but we didn't make it. Now we have to concentrate on all of the competitions in Scotland.

"We have a very important game on Sunday. We need to be up for that one because Aberdeen are in second place in the Premiership and it is one we want to win.

"Every game is important for us in the next few weeks and the first one is coming up on Sunday. We were so disappointed, but we cannot let it affect us against Aberdeen."

Johnasen added: "I think we can take confidence from these games with Inter Milan. We showed that we are at this level now.

"We were not there at the start of the season, but the way we performed over two games against Inter Milan proves we are going in the right direction.

"That's what made Virgil's sending off so frustrating as I felt we had a good chance of winning the game when it was 11 v 11.

"Unfortunately, it didn't go our way and now we have to work hard at home and concentrate on the domestic season.

"Inter have top quality players all over the pitch and you have to be concentrated for 90 minutes. We learned a lot from these games."

Johansen felt having Virgil van Dijk ordered off for two bookable offences in the first half in the San Siro made Celtic's chances of beating Inter away slim.

He said: "We knew it was going to be hard, but once you go down to 10 men it made it even harder for us. We wanted to get through so we were so disappointed. We felt we had a chance.

"I don't know about the decisions. For Virgil's first yellow card wasn't even a foul, never mind a yellow card. I didn't think the second one was a yellow card."