Manor Solomon continued his excellent run of form since recovering from a knee injury, finding the net for a fourth time in as many matches with a clever curled effort from the left wing.
But it was Joao Palhinha’s stunning strike which broke the deadlock. He won the ball in midfield, drove forward and then unleashed a superb shot from outside the box.
Gracia admitted his disappointed as his side were unable to capitalise on their chances, especially in the first half.
The visitors also had a goal ruled out when Georginio Rutter tapped home after Marek Rodak palmed the ball into his path, but referee Chris Kavanagh saw a soft foul in the area and VAR did not intervene.
In this moment I am really disappointed because in my opinion we were a little bit unlucky because we created many chances,” Gracia said.
“It’s true we were not clinical, we did not finish with composure, but after we scored a goal that was disallowed, in my opinion very, very soft.
“We were close to changing the dynamic of the game, but we didn’t score after, we didn’t have any chance.”