Newcastle boss Alan Pardew believes the decision not to send off Chelsea's David Luiz on Saturday has caused the club major injury problems.
Luiz fouled Demba Ba when the Newcastle striker seemed through on goal, but was only booked by referee Mike Dean.
Pardew said that the decision may have changed the game and led to Newcastle "putting in more effort than we've done in any other game this season".
"That's cost us injuries to [Danny] Guthrie and [Steven] Taylor," he added.
Fabricio Coloccini was also injured in the 3-0 defeat and is expected to miss the game against Norwich on Saturday with a thigh problem.
Centre-back Taylor will miss the rest of the season with an Achilles problem, while midfielder Guthrie faces a four-to-six week lay-off with a groin injury.
"We ended up with 10 men with not a centre-half on the pitch. I don't ever remember being in that situation before," added Pardew.
Referee Dean admitted to Pardew after the game that Luiz should have seen a straight red for his fourth minute challenge on Senegalese international Ba.
Referring to another referring mistake last weekend, where Stuart Attwell sent off Bolton's Gary Cahill, a decision overturned on appeal, Pardew said: "It's interesting to see both the referee at our place, who admitted to the mistake, and the Bolton referee have got games this weekend."
Pardew is now set to pick utility player James Perch, who came on for Coloccini on Saturday, for Saturday's Premier League clash with Norwich.
Hungarian Tamas Kadar could make his first appearance of the season or the Magpies boss may call on either Davide Santon or Danny Simpson to solve his centre-half dilemma.
Taylor, who has impressed at the Sports Direct Arena this season, has undergone an operation on his injured tendon and is said to be progressing well.