In recent weeks, Manchester United and Chelsea have both been linked with making big moves this summer.
And, it's no surprise that two of England's elite clubs have been linked with the same superstar signings.
So, as the countdown to the summer begins, we're going to take a look at five stars Manchester United and Chelsea could go head-to-head for this summer:
Recent reports suggested that both Manchester United and Chelsea were on alert over the potential signing of Edinson Cavani.
Cavani would certainly fit into both sides. The Uruguayan, who is 27-years-old, is in the prime of his career and acts as a real presence in attack.
It's no secret that the Blues need a new striker, but Cavani has all the makings of Manchester United's next No.7...
Luke Shaw is one of the hottest prospects in the world of football, but can Manchester United or Chelsea tempt him with a move away from Southampton in the next transfer window?
Both clubs certainly seem interested in the youngster and, with left-back a problem position for both clubs, you can see why.
Ashley Cole and Patrice Evra are in the twilight years of their careers and Shaw looks the ideal long-term replacement.
Radamel Falcao, like Edinson Cavani, would represent a marquee signing for both Manchester United and Chelsea, should either tempt the superstar away from Monaco.
There have been rumours that Falcao is ready to ditch Monaco after just one season, so don't be surprised if David Moyes and Jose Mourinho make him their top target.
Falcao's a special player and would score goals for fun in England's elite division.
At just 23-years-old, Mangala has an extremely bright future ahead of him, so it's no surprise both United and Chelsea are reportedly interested in him.
Manchester United must be in the market for a new defender with Nemanja Vidic on his way out and Rio Ferdinand ageing. Meanwhile, the likes of John Terry and Ashley Cole can't last forever, so Mourinho may look to further sure up his back-four.
It's no secret that Manchester United need a new midfielder, so perhaps Sami Khedira could be the man to fill the void at the Theatre of Dreams.
Khedira knows Mourinho very well from his Madrid days, so would he be tempted with a move to the Bridge?
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