Albion have recovered from a mid-season wobble by taking 13 points from the last 15 on offer, while Preston are also in good form an enter this fixture sitting sixth in the table.
That victory went a long way to boosting Preston's own hopes of reaching the Premier League as they are now three points better off than Bristol City in the final play-off berth.
Since losing three in a row around the turn of the year, Preston have now lost just one of their last eight, winning five of those.
They are unbeaten in six on their travels in the Championship, meanwhile, and have won each of the last three by a 7-1 aggregate scoreline.
West Brom may be sitting pretty at the top of the division, but they hardly boast the best home record as they have won only one of their last six at The Hawthorns.
No team has been as consistent as Slaven Bilic's side this term, though, and after overcoming Bristol City confidence will be high of sweeping aside another playoff hopeful.
West Bromwich Albion's Championship form: LWWWDW
Preston North End's Championship form: WDWWLW
Sawyers' suspension, combined with the quick turnaround in fixtures, means Bilic will be forced into tinkering with his starting lineup.
Robson-Kanu is expected to lead the line after scoring his eighth and ninth Championship goals of the campaign last time out.
As for Preston, Browne may have forced his way into the starting XI after scoring the winner from the bench against Hull.
West Bromwich Albion possible starting lineup:
Johnstone; O'Shea, Bartley, Ajayi, Townsend; Livermore, Krovinovic; Grosicki, Pereira, Robinson; Robson-Kanu
Preston North End possible starting lineup:
Rudd; Fisher, Bauer, Davies, Hughes; Pearson, Gallagher, Browne; Harrop, Barkhuizen, Sinclair
We say: West Brom 1-1 Preston
Both sides have been tough to beat of late, losing just one of their last 13 games between them. Preston have been impressive on the road and Albion a little shaky at home, so we are backing this one to finish all square.