Radja Nainggolan insists he's happy at AS Roma.

The midfielder is in co-ownership with Cagliari.

"I'm happy here at Roma," Nainggolan told Roma Match Programme.

"We've done very well in my two years here, and I feel perfectly integrated. I hope to continue to do well in this shirt.

"It's well-known that there's the question of ownership which has to be resolved, but I'm happy here."