Arsenal are finally set to land Pablo Mari after a deal was agreed with Flamengo for the Spanish defender.
Mari flew to England alongside Arsenal technical director Edu on Saturday to undergo a medical but returned to Brazil on Sunday after the clubs failed to agree on the terms of his move.
Negotiations have continued, however, and there was a breakthrough overnight with Mari given permission by Flamengo to return to London to finalise his switch to Emirates Stadium.
The 26-year-old will put pen to paper on a loan deal until the end of the season, which will include an option for Arsenal to make the move permanent in the summer, although no obligation clause will be included.