We'll be looking to extend our run of five wins and a draw in seven Premiership outings this year when we travel to the Riverside.
Boro will no doubt be focused after losing at Birmingham in midweek following their Carling Cup triumph last weekend.
And we owe them one - Gus was one of two players to miss from the spot in a penalty shoot-out as we lost to Boro in the Carling Cup quarter-final at the Lane.
Gus said: "When you go onto the pitch you have to forget about those things but it would be nice for us to win the game because of the situation we are in.
"No-one knows what will happen. We have 12 games to go and if we start picking up wins maybe we'll find ourselves right up there.
"I think the next three or four games are vital because it will determine where we are going to aim for in the last part of the season."
Gus Poyet says the next three or four games could shape the rest of our season - starting at Middlesbrough on Tuesday.