Manchester United are aiming to secure a £30 million deal for Southampton defender Luke Shaw before the World Cup after moving ahead of Chelsea in the race to sign the teenager.

With club scouts also being ­dispatched to watch Borussia Dortmund midfielder Marco Reus during Saturday’s 3-0 victory against Bayern Munich at the Allianz Arena, United are intensifying their efforts to bolster their squad following David Moyes’s disastrous first season in charge.

Although Moyes’s future as manager remains in doubt, United are pressing ahead with attempts to recruit the players the Scot has identified as key targets. And United are confident of being able to persuade Southampton left-back Shaw to reject Chelsea, whom he supported as a boy, in favour of a move to Old ­Trafford to replace Patrice Evra.

While Chelsea remain determined to sign the England defender, Shaw is understood to be concerned by a possible lack of regular football at Stamford Bridge due to the impressive form of César Azpilicueta and with Ashley Cole expected to sign a one-year contract extension to remain at the club.

Evra’s anticipated departure from Old Trafford this summer, however, has left United in pressing need of a first-choice left-back and, at 18, Shaw is viewed as having the potential to fill the ­position for the next decade.