Everton assistant manager Steve Round says that his side cannot understand the decision to disallow Phil Jagielka's goal against Stoke.
The Toffees appeared to take the lead at the Britannia Stadium when Jagielka headed a corner into the roof of the net.
But the strike was chalked off after Victor Anichebe was ruled to be in offside position as the defender met the cross.
After the contest, referee Howard Webb confirmed that Anichebe was adjudged to be interfering with play, resulting in the assistant's flag being raised.
But Round still believes that the goal was perfectly legal.
"We can't quite understand why it was disallowed to be honest - it looked a perfectly good goal to us," he told Sky Sports.
"We believe that Victor is standing in an offside position when Phil Jagielka heads the ball but the corner's come in, he's headed it straight in the net.
"Is he interfering with play? I don't think so.
"We'd have to ask the officials why they disallowed it but we respect that decision. That's what they're there for and we move on."
He added: "He's in front of the goalkeeper but would it interfere with the ball going in the net? We're not sure."
The draw means that Everton's hopes of finishing seventh and qualifying for the Europa League have been extinguished.
Round says that missing out on European football is a major disappointment.
"We really wanted to keep the pressure on and try and qualify for Europe and now we can't do that," he said.
"So it's a big disappointment to us, the dressing room was quite down afterwards.
"There's a real resolve and a commitment in there to try and qualify for Europe and be successful in Europe.
"So there is a big disappointment and we needed to win today but unfortunately we couldn't quite do it."