Reports in Italy suggest that Alonso has emerged as a target for Louis Van Gaal following United's opening day loss to Swansea.

United have been heavily linked with a move for Arturo Vidal this summer while Van Gaal is also known to be keen on Roma's Kevin Strootman.

But with a move for Vidal still in doubt and Strootman not expected to be fit until later this year, Alonso could make sense as a stopgap measure.

Real were said to be unhappy that the Spanish international had returned to preseason having lost significant weight during the summer.