Leicester City chalked up their fifth consecutive clean sheet with a 2-0 win at relegation candidates Sunderland on Sunday.
The Reds' stand-in captain insists the Anfield supporters can play a huge role in getting the club over the line and into the Europa League semi-finals.
Newcastle United, Sunderland and Norwich City are all fighting for survival in the Premier League.
Mesut Özil scored in Arsenal's 3-3 draw with West Ham United on Saturday.
The Hammers have a quarter-final replay with Manchester United ahead on Wednesday.
Aldridge wouldn't be surprised to see both Origi and Sturridge starting, but admits the Belgian is favourite to lead the line.
The Seagulls boss is looking forward to the Championship title run-in after Brighton moved to within two points of the league leaders.
Leeds United missed out on Norwich City's Kyle Lafferty, which the striker ended up at Birmingham City.
Sunderland are set to face Norwich City at Carrow Road this weekend.
Rangers face Celtic in the Scottish Cup semi-final this weekend.