Inter Milan president Erick Thohir says they're among the top ten clubs in the world.

Thohir insists they will return to their former glories.

"I still think that Inter should be in the world's Top 10 of football clubs, but it's going to take time," Thohir told Inter Channel.

"I think we all know that [Coach Roberto] Mancini is a leader and that he's working hard to build a good team.

"In the last few games we have conceded a goal in the final minutes, but our confidence is growing. The players have to stay focused until the 94th minute. You can't take it easy just because you're leading 2-0.

"This is football, and that's why it's such a famous sport. It's dramatic and exciting.

"Now we still have 14 games to play in Serie A, but of course our concentration is on tomorrow's [Europa League] game [against Celtic].

"We must win that. We want to keep moving forward in the Europa League."