The London Stadium's landlords face potential turmoil should the Premier League season run longer than expected - but West Ham believe they will not be left homeless or footing a hefty bill.
Several events are booked to take place at the 66,000-seater stadium this summer, including baseball, athletics and music concerts, but the club insist they have priority over them all.
Clause 7 in their contract with landlords E20 details how West Ham have 'Overriding Priority Principle' and their agreement means they take precedence until the day after 2019-20 ends.
Major League Baseball is due to return to the London Stadium on June 13 and 14, but the currently-suspended Premier League campaign could still be ongoing at that time.