- Kick-off: 15:00 GMT
BBC Radio 5 live commentator
This Swansea team look depleted and poor and Bob Bradley looks very, very nervous.
Terrible Boxing Day for Swansea. Plenty of late Christmas gifts for West Ham.
Barely a minute later and Swansea revert to type.
Substitute Sofiane Feghouli easily works free down the right to float a ball over to the back post.
Who else but Andy Carroll is there, volleying past Fabianski.
A goal Carroll's fine all-round display deserves. Probably the fourth goal that Swansea's defending deserved.Copyright: Getty Images
Scant consolation for Swansea.
Nathan Dyer shows more than most of his midfield colleagues have done all day, standing up his man to find Fernando Llorente who fires high beyond Darren Randolph.
No clean sheet for the Hammers.Copyright: gett
This is the ninth time this season that Swansea have conceded three or more goals.Relegation record that.
Jack Cork is still prepared to gallop forward in a losing cause though - again stinging Randolph's palms from distance but the keeper is once more unruffled and holds on.
Sofiane Feghouli comes on to warm applause for departing goalscorer Michail Antonio.
Angel Rangel gets forward to steer a volley at Randolph but it's an easy save for the Hammers keeper.
A painful day for Swansea.
Bob Bradley is having a worse day than you.
It's another terrible goal to concede - Fernandes cuts inside, leaving his marker on the floor and pulls back for Nordveit to drive a shot into the box.
His effort was going wide but is deflected in by Michail Antonio, who had about half the penalty area to himself.
Swansea appeal for offside but the defender on the floor was playing Antonio on.Copyright: Reuters
Former Swansea man Andre Ayew leaves the field to a chorus of boos to be replaced by Edimilson Fernandes.
West Ham are trying to kill this contest and succeeding so far. Dimitri Payet was just able to swivel on the ball in 15 yards of space to himself and play the ball back to Aaron Cresswell.
Montero never got back on after that fall and has been taken off on a stretcher, to be replaced by Nathan Dyer.
Fernando Llorente wriggles free close to the byline on the right and finds Gylfi Sigurdsson but his header is acrobatically tipped over by Darren Randolph.
It's really not Swansea's day. It's looking like Randolph's though.
Looks like the substitute Montero is going to have to be replaced himself.Copyright: Reuters
Swansea's fans want a penalty as Montero falls under a challenge from Havard Nordtveit on the left by the byline.
No interest from Andre Marriner who awards a goal-kick. Montero still down receiving treatment.
None of his team-mates were too interested in the penalty shout either.
Even in the madcap merry-go-round round of management it would be slightly odd to see Bob Bradley lose his job after this match.
But then given how little Swansea have offered, maybe not. The crowd clearly making their ill-feeling known.
Meanwhile, Andy Carroll is proving adept in defence as he repels a couple of Swansea balls forward.
BBC Sport Wales at the Liberty Stadium
Things are really getting nasty at the Liberty Stadium now.
"We want Bradley out," is the chant from Swansea's fans as West Ham go 2-0 up. "You don't know what you're doing," then swiftly follows.
You get the impression Bob Bradley may be on the brink of losing his job after less than three months in charge of Swansea.Copyright: Getty Images
But back come West Ham as Mark Noble's deflected shot slides past the right-hand post with Fabianski stranded.
Brighter again from Swansea - albeit after conceding a second goal - as Sigurdsson floats a cross to the back post but Wayne Routledge heads it at Darren Randolph.
Routledge is only small but maybe should've made Randolph work harder.