Luis Suarez-Rafael Da Silva
Rafael Da Silva is ready to challenge for a starting spot with Valencia.Reuters

Manchester United right-back Rafael da Silva is ready to give manager Louis Van Gaal a major boost after returning to training following a hamstring injury.

The 24-year-old has missed the beginning of the campaign after picking up the injury during United's preseason tour of the United States.

But the Brazilian now looks ready to challenge current right-back Antonio Valencia for a place in the starting line-up after confirming on his official Instagram account that he is back in training.

"Five years ago young skinny rafael good memories. Back in training ready to help. Let's go" he wrote.

Van Gaal has struggled to forge a competitive XI since his summer arrival due to a number of injuries, with his side yet to secure a victory. Nevertheless, United have only got two points from three Premier League games while suffered a humiliating 4-0 defeat against MK Dons in the second round of the Capital One Cup.

It looks Van Gaal's fortunes could change in future games as apart from Rafael, new signing Ander Herrera and Luke Shaw are also close to returning from injuries while Marcos Rojo, Daley Blind and Radamel Falcao are expected to make their debuts on Saturday against Queens Park Rangers.

Herrera himself has also confirmed on his Twitter account his imminent return to action after damaging his ankle during the Premier League opener against Swansea on 16 August.

Furthermore, some reports suggest former Southampton youngster Shaw may also be ready to make his first competitive appearance for Manchester United on Sunday.