JOE Lewis believes Aberdeen’s back-to-back wins in Glasgow over Rangers and Partick Thistle have given them the perfect lift ahead of their William Hill Scottish Cup final against Celtic tomorrow.

The Dons keeper believes they can take massive self-belief from their 2-1 triumph over the Gers at Ibrox earlier this month – their first win at the Govan ground since 1991.

The 29-year-old believes that Derek McInnes’s side is capable of ending their five-game losing streak against Brendan Rodgers’s team and lifting the trophy this weekend.

“We are going into this game on the back of two very good results,” he said. “The Partick one (Aberdeen won 6-0 at Firhill on Sunday) should give us a lot of confidence.

“It is nice to get a clean sheet. We always carry a good threat going forward and it was nice to get a clean sheet really. It’s been a long time coming for us, we’ve not kept a clean sheet for a while.

“And obviously the result at Rangers proved we can deal with the pressure of playing in big games and in front of big crowds.

“Certainly, when they scored their goal there was a lot of noise and a lot of pressure on us and we showed a lot of character to see the game out. We can take a lot of positives from that.”

Meanwhile, Lewis has revealed he is hoping that helping Aberdeen to their first Scottish Cup victory since 1990 will help to aid his father’s recovery from a stroke.

“He hasn’t been very well recently and won’t be able to come up,” said Lewis. “He will be watching on television and cheering us on. He is out of hospital, but he isn’t able to travel very far just now.

“He has seen plenty of games on television and I have got him a code for RedTV as well. He watches all the games and highlights and follows me closely. It would be great to take a medal back down to him. He would love that.

“He used to come to the majority of my games. We used to train Tuesday and Thursday nights and on Friday it would be goalkeeping training and then games on a Saturday and Sunday morning. When I was a kid he used to drive me everywhere.

“It would be good to go back with a medal for that. My mother and all my family have been really supportive, including my wife. She is there when I have had a bad game and gone back in a bad mood.

“It is for the family who have to deal with all the negative side of being a footballer and playing in nearly a 12 month season. A win would be great for the family.”

The most painful defeat Aberdeen have suffered against Celtic this season came in the Betfred Cup final last year when they conceded soft first half goals to Tom Rogic and James Forrest and ended up losing 3-0.

But the north-east club went on an excellent run of form after that painful result and finished second in the Ladbrokes Premiership for the third season running – nine points ahead of Rangers.

The keeper is confident they will give a decent account of themselves tomorrow and can end their losing streak against their Glasgow rivals when it matters the most.

“I think we need to be positive,” he said. “That League Cup final game it wasn’t the Aberdeen team we have seen throughout the season.

“We need to be positive and on the front foot and it’s about 90 minutes plus concentration. They have quality and if you switch off you get punished against good teams.

“Whether it’s 90 minutes plus, extra-time or penalties you need to be switched on the whole time. We know if we can keep it tight at the back we have enough threat going forward to cause them some trouble.

“We’re a better team than we were in the final. From the middle of December onwards we went on a great run. We had eight games in a row winning and we showed great form. Players individually came into some great form as well. We have learned a lot of lessons throughout the season as well.”