Real Madrid could be set to make a cash-plus-player bid for Wolfsburg left-back Ricardo Rodriguez, [football] direct news understands. The Spanish giants are one of many top European sides to have been linked with a move for the young Swiss international, who has established himself as one of the best defenders in the Bundesliga this season. Liverpool are also believed to be keen on the talented 21-year-old, who weighed in with five goals and nine assists from the back this season, though they could now be set to miss out on the player. With Madrid facing the possible departures of both Marcelo and Fabio Coentrao in the left-back position this summer, Carlo Ancelotti has identified Rodriguez as a top transfer target, and could offer Wolfsburg an option to sign Brazilian midfielder Casemiro as part of the deal. The 22-year-old has struggled to establish himself at the Bernabeu, making just one start in La Liga this term, and it is thought that the club could be willing to let him go, with Arsenal and Inter Milan both linked as potential suitors for him. It has also been reported that Real could offer him in another possible swap deal with Porto as they chase highly-rated Colombian youngster Juan Quintero.