Having only recently returned from a hamstring problem, Sanchez limped out of the FA Cup third round win over Reading earlier this month. But after a week of training he will be included against the Seagulls as long as there are no further problems before the game.
"He is a player who loves to play football, it doesn't matter who you are, you want to play football. And he's been hindered by injury. I know all about injuries and how frustrating that can be and how eager you are to get back," the boss, who saw his career curtailed by injury, added.
Solskjaer has inspired confidence at United since taking over on an interim basis from sacked former boss Jose Mourinho last month and is aiming for a seventh win from seven.
"You go into every single game at Manchester United, as a player or a manager, thinking you're going to win. That's just the nature of this club," he said, adding that games like Brighton are even more of a test for the players than against the likes of Spurs.
"We've had six good games but the next one is always the important one. Everyone said about Tottenham being the test - I don't think that is the test in the respect of attitude, because you know the players are going to be up for that.
"I want the players to be confident, but I don't want them to be complacent and take their foot off the pedal. That's a big difference for me.
"I want them going in there full of confidence, taking people on, playing, running, passing forward, getting the crowd with them because that's what it's about."
Source : 90min