Albion suffered their first home defeat of the season by losing 1-2 to Huddersfield on Saturday afternoon.
The Baggies were one-down at half-time via Delano Burgzorg’s strike but hit back after the restart, John Swift scoring his second in as many matches.
However, Town stole all three Sky Bet Championship points during stoppage time – Jack Rudoni smashing home the winner.
Carlos Corberán’s men now have a two-week gap ahead of their next fixture, when they visit Bristol City following the international break.
The boss switched shape for the game against his former team, going to a back four and bringing in Conor Townsend and Kyle Bartley.
Townsend curled Albion’s first chance over in a rousing early atmosphere, though the hosts thought they had gone behind soon after when Huddersfield’s Rudoni netted – only to hear the referee blow for a foul in the build-up.
Both sides had chances, yet it was Neil Warnock’s visitors who took a lead into the break – Burgzorg firing a volley past Alex Palmer in the 33rd minute and the Baggies finding no response before half-time.
It didn’t take them long to find a leveller in the second period, though, thanks to Swift. The attacking midfielder was played in on goal by Brandon Thomas-Asante, and coolly converted for 1-1.
Corberán looked to the bench and brought on attacking options Jeremy Sarmiento, Josh Maja and - later - Grady Diangana to try and find another.
In a dramatic nine minutes of stoppage time Albion did have an opportunity to win it – Maja seeing a finish well saved.
Instead, Huddersfield grabbed the points – Rudoni’s low shot finding a way into the back of the net and giving Town the victory.
Albion: Palmer; Furlong, Bartley (Pieters 65), Kipre, Townsend; Yokuslu (Chalobah 73), Molumby (Diangana 88); Wallace (Sarmiento 65), Swift, Phillips; Thomas-Asante (Maja 73).
Substitutes: Griffiths, Taylor, Mowatt, Fellows.
Attendance: 23,094 (855).