Newcastle are in advanced negotiations to sign one-time Manchester United target Kieran Trippier from Atletico Madrid.
Sources say a deal is close but discussions are more complex as provisions are thrashed out amid the possibility Newcastle get relegated.
United have not shown any more interest in Trippier, 31, after they attempted to sign him in the summer. Diogo Dalot has started in four of the last five Premier League games and earned plaudits for his performances.
Aaron Wan-Bissaka's subdued second season convinced United to pursue Trippier in the summer when Dalot was coveted by AC Milan and Borussia Dortmund.
United kept Dalot as Atletico outpriced them for a move for Trippier, who started for England in the European Championship final against Italy.
Roma had expressed interest in Dalot last month but his regular playing time heading into January leaves United with two first-team-ready right-backs.
United informed Roma that Dalot would only be available if they moved for Trippier in the new year. The sacking of Ole Gunnar Solskjaer has all but scuppered a move for Trippier.
All of Dalot's league starts have come since Solskjaer was dismissed on November 21 when he had gone more than two years without lining up in a Premier League match.
Bury-born Trippier made arrangements for his family to relocate to Manchester in the summer. Trippier generated interest from other Premier League clubs but the boyhood United fan wanted to move back to Manchester.