Glenn Murray should have scored four in the first game, missed two one on ones with Joe Hart.
I think West Ham should count themselves lucky that Izzy is injured!
Potter plays four at the back more often than not, and last season GP changed formation for the second game.
https://www.whoscored.com/Matches/1288702/Live/England-Championship-2018-2019-Swansea-Preston
4-2-3-1
I predict a change to four at the back, and three or four changes in personnel; Bernardo, Trossard, Mooy and Maupay to start for Burn, March or Locadia, Stephens and Murray.
Ryan
Montoya Duffy Dunk Bernardo
Pröpper Mooy
March Groß Trossard
Maupay
subs: Button, Webster, Burn...