An apparent gesture from Rangers forward Fabio Silva upon his return to Benfica last night may have gone under the radar - but it's been picked up by some in his native Portugal.

The on-loan Wolves striker played a key role for Philippe Clement's side as they earned a 2-2 draw in Lisbon. 

Twice the Ibrox club led the Portuguese giants, with Tom Lawrence and Dujon Sterling grabbing the goals. However, an Angel Di Maris penalty and an own goal by Connor Goldson ensured the tie was level heading into next week's second leg.

Silva assisted for Sterling as Rangers retook the lead just before half-time, with John Souttar controversially being penalised for handball taking place just moments before.

The 21-year-old seemed to really enjoy playing at the Estadio Da Luz in his homeland.  Of course, he used to play for Porto before his mega-money £35m move to Wolves. 

The attacker has made no secret of his allegiances in Portugal. He told the press: "Everyone knows who I have supported since I was a kid. I don't need to say it.

"Everyone supports one team and that was the same for me."

And judging by the jeers Silva received while out on the field in a Rangers jersey, it seems the Benfica faithful have not forgotten. 

Porto thumped Benfica at the weekend. The hosts ran out 5-0 winners at the Dragao in what was a hammer blow to Roger Schmidt's side.

And eagle-eyed fans spotted that after Silva was substituted by Clement last night, he held up his left hand, with five fingers showing, as he made his way to the bench. 

READ MORE: The Rangers & Celtic Champions League slot state of play

Whether he was aiming a subtle dig back at the Benfica fans for their booing of his performance on the pitch, or whether it was unrelated can be debated.

But one Porto fan account certainly seemed to think the wind-up gesture was intentional, as they posted the clip of the moment on social media.

For balance, Silva spent two years in Benfica's academy, so he could have been waving in order to keep the peace. 

Either way, Benfica will need to up their game if they're to maintain their title hopes, with Sporting Lisbon a point ahead, with a game in hand, and Porto now breathing down their necks in third.