AS Roma chief Franco Baldini says they're working overtime to add to Zdenek Zeman's squad.

Mattia Destro arrived this week from Siena.

"We are looking to form a squad that will make us more competitive in Serie A and we are sure that we will be able to do that," Baldini said.

"We'll continue to make improvements because we know that we are missing something in order to become even stronger.

"The market is still open until the end of August so we are hopeful on that front."