"Manchester United have won three of four [Champions League] away games this season, and we have to be careful".
"Barca here at the Nou Camp is a hard prospect but that night will live with the players".
United must improve from the first leg when they did not manage a single shot on target as Luke Show's own goal proved to be the difference maker.
Solskjaer confirmed before that match: "He is training with us, he's trained twice". We have been practicing finishing, but it's also about being focused and confidence. We have to defend well but we have to have that little bit of extra to score goals. "It is about taking a deep breath and taking those chances".
'Those that start the game will be important but so will those that finish it, ' said Valverde. You have to do that against Barcelona. They have shown it this season and they won a European Cup here showing it.
"We have to perform better than 80-20".
'We will be true to our style but we are also aware of what they have in attack and the game can't become you attack us, we attack you.
Given the draw, Manchester United were the outsiders of the four English clubs to reach the semi-finals prior to the first legs. We will try to make sure they don't score. "We have to be fitter and keep going".
"Games are decided on mentality and that changed their mentality: they started worrying".
Lionel Messi will return to action for Barcelona after sitting out at the weekend as a result of a clash with Chris Smalling.
Solskjaer's goal against Bayern Munich came in the third minute of injury time, two minutes after Teddy Sheringham had equalised, and sealed a historic treble for Sir Alex Ferguson's side. That's a massive factor in a game of football. It would be the same for us tomorrow.
Asked if the prospect facing his current side on Tuesday was more hard, Solskjaer said: "In football, anything can happen".
But Solskjaer said: "That memory from PSG will help the players". We know we need to perform better and play ourselves. "We're playing a fantastic team and we have to be realistic enough to know that".
The Red Devils were unconvincing in Saturday's 2-1 win over West Ham United.
"Physically we're ready", he said.
"He has been injured and has not had a fantastic season so far".
"If you put your life, determination and everything you have, you get what you deserve", he said.
"We have beaten some good teams away from home this year, and played against some great players".