Cape Town - Despite going on a 13 game unbeaten streak, Antonio Valencia has warned that Manchester United still have a lot of hard work if they want to secure a Champions League spot.
"It’s very open and quite tight in those top spots," Valencia told MUTV.
"We’re seven points behind second place and then a couple of teams are three or four points below us.
"We must fight hard in the remaining games to finish as high as possible. It’s a long season and we’ve picked ourselves up of late, so we need to keep the results coming for the fans.
"We’ve got tough games coming up against very good teams and rivals for our position but, if we keep the concentration high, we can achieve our aim of a top-four finish."
Manchester United, who host Leicester City on Saturday, sit in fourth spot on the English Premiership table with Arsenal, Spurs, West Ham and Liverpool all within 5 points of Louis van Gaal's team.
Van Gaal has employed Valencia as a right-wing back this season and will be hoping that the Ecudorian will be able to play his usual attacking game with goals having dried up of late for the Red Devils.
The Dutch manager must decide how best to utilise his attacking options with the likes of Angel Di Maria, Wayne Rooney, Robin Van Persie, Radamel Falcao and Juan Mata all available for this fixture.
Saturday's home fixture kicks off at 17:00.