Arsenal are in talks with Sporting Lisbon for William Carvalho.
Record says Sporting have officially put Carvalho up for sale.
Gunners boss Arsene Wenger had a £24m bid for the Portugal star rejected last week by Sporting, who insisted that Carvalho would not be sold unless his £37m buy-out clause was met.
But there position has now softened and the Gunners are now back in for the 22-year-old - and could sign him by the end of the week.
Carvalho has also attracted interest from Manchester United this summer.
Reports last month suggested that new Red Devils boss Louis van Gaal was eager to sign the holding midfielder, but so far United have not made an official approach for the Portuguese international.