Arsenal manager Arsene Wenger has confirmed he will look to replace Alex Song as Nuri Sahin, Yann M'Vila, and Lucas Biglia continue to be linked with moves to Emirates Stadium.
Arsenal on Saturday evening confirmed they have agreed a fee with Barcelona for Alex Song, who will complete a £15million move to Camp Nou in the next 48 hours subject to passing a medical.
The 24-year-old, who missed Saturday's 0-0 draw with Sunderland as he looked to finalise his move to the Spanish giants, has already agreed a five-year deal.
Speaking after Saturday's game, Wenger insisted he is happy with the midfield options still available to him, but hinted that he might look to add one more player to his ranks before the transfer window closes at the end of the month.
"We have [Jack] Wilshere coming back now," the Frenchman said.
"We have [Abou] Diaby back, we have [Tomas] Rosicky not far away and we might bring someone in."
Arsenal are battling Liverpool for Real Madrid midfielder Sahin, who would be available on a season-long loan deal, while Rennes midfielder M'Vila has been on Wenger's radar for some time.
And according to Sky Sports, Arsenal have moved into pole position to sign Anderlecht midfielder Lucas Biglia.
Wenger suggested he could look to bring in an additional creative player, which could rule out a move for M'Vila.
The Gunners boss was also keen to praise summer signing Santi Cazorla following Saturday's opening game of the Premier League campaign.
"Santi Cazorla played very well, he arrived just a week ago so [the overall poor performance] is not linked with new arrivals," Wenger said.
"Some players changed position, and some were not completely fit. Playing three strikers didn't work today. We had no space, and the passing was not quick enough so it was difficult for them.
"Maybe we needed one more creative player. It's one game and it's too early to draw definitive conclusions because we faced a specific problem from a team who played very deep."