ESPN are currently offering Sky customers, who ring up to cancel the channel, four months free viewing.
This is not an advertised promotion but a retentions deal aimed at avoiding people cancelling over the summer and failing to sign back up again when the new EPL season kicks off in August.
There has also been some reports of people (possibly those playing harder to get) being offered six months free, but four months seems to be pretty much nailed on at least.
Remember you are obliged to give 31 days notice when cancelling so get your cancellation in now.
The ESPN phone number is listed as 0844 324 1540 but you can alternatively call Sky customer services free on 0800 046 6432.
* Technically this belongs in the deals section as it requires an initial spend to get the free offer.