The showpiece final at Wembley is normally the fixture to precede the beginning of the league campaign.
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The fixture precedes the beginning of the league campaign and is contested by the Premier League and FA Cup winners.
However, a fixture pile-up means that the traditional season opener will have to be changed slightly.
As a result of European competitions, whoever wins the FA Cup may miss out on the Community Shield.
With these competitions not to be finished until August, it raises doubt over the Community Shield.
Arsenal completes the set of four teams in the FA Cup semi-finals; however, they have already been knocked out of Europe.
United look set to progress to the next round, while City have a 2-1 lead over Real Madrid in the last-16 stage.
Chelsea look likely to get eliminated from the competition.
Should United and City progress, they will participate in mini-tournaments held in Lisbon.
The finals will then be held on the weekend of August 21-23, therefore clashing with a possible Charity Shield fixture on the 23rd.
Top-flight clubs are yet to determine when the new season will begin, but August 22 or September 12 are the proposed dates.
According to The Times, the FA may look towards the winners of the Sky Bet Championship to take on Liverpool.
West Bromwich Albion and Leeds United have been swapping top spot for most of this season.
The Whites are currently in pole position after beating Stoke City 5-0 at Elland Road.
Marcelo Bielsa’s side leads West Brom by just one point.