"He lost a little a bit of consciousness and he lost his short-term memory," said Hammers manager Gianfranco Zola. "He is fine and they are confident it is not going to be a big problem. He couldn't remember much of it but he was fine. He doesn't remember me -- which is a good thing! But he is OK and shouldn't be too bad."
Spector has edged his way into the scene at West Ham, making seven appearances since late December following a six-month injury absence. A shoulder injury ruled him out of the 2006 World Cup, and a torn labrum sidelined him until December.
Elsewhere, Oguchi Onyewu was in the starting lineup for Standard Liege in its 3-1 win over Germinal Beerschot that moved it back into a tie with Anderlecht for the lead in Belgium.
Four other starters against Trinidad & Tobago in Wednesday's World Cup qualifier started over the weekend:
-- Tim Howard in Everton's 4-0 win over Wigan (England);
-- Carlos Bocanegra in Rennes' 3-0 loss at Sochaux (France);
-- Michael Bradley in Moenchengladbach's 0-0 tie at Karlsruhe (Germany);
-- Clint Dempsey in Fulham's 1-0 loss to Liverpool (England).
DaMarcus Beasley and Jozy Altidore did not suit up for Rangers (Scotland) and Xerez (Spain), respectively.