Chelsea followed up their terrific result at Manchester City on Monday by comfortably beating Newcastle United 3-0 at Stamford Bridge on Saturday.
Belgium international Eden Hazard was again in outstanding form for the Blues - with the former Lille man scoring a hat-trick for Jose Mourinho's side.
It was a particularly good weekend for the Blues as their nearest rivals both dropped points.
Arsenal were thrashed 5-1 by Liverpool, while Chelsea's fellow Premier League title rivals Manchester City failed to claim all three points against Norwich City.
Chelsea have the chance to stretch their lead at the top of the table to four points on Tuesday as both Arsenal and Manchester City do not play until Wednesday.
Mourinho may look to freshen up his starting line-up against West Brom tomorrow as the Blues face another tough encounter against Manchester City in the FA Cup on Saturday.
John Terry, who missed his first Premier League game of the season due to a minor knock against Newcastle, has been sidelined for tomorrow's encounter.
Mourinho may also choose to give January signing Mohamed Salah his first Premier League start.
Chelsea predicted line-up: Cech; Ivanovic, Cahill, David Luiz, Cole; Lampard, Matic; Hazard, Oscar, Salah; Eto'o.