The Argentina international joined the travelling Manchester United supporters in the away end at Anfield as the defender continues to recover from a shoulder injury.
United captain Wayne Rooney scored a 78th-minute winner to seal three points for the Red Devils at the home of their bitter rivals in Sunday’s early kick-off.
And the Argentine defender posted a video on Twitter which shows the former Sporting Lisbon defender revelling in Rooney’s winner alongside his friend and United’s fans.
Rojo wrote on Twitter: “What a goal 🏽🏽 great moment celebrating the victory in the stand with my friends!”
Qué golazo 👏👏👏👏 Gran momento celebrando la victoria desde la tribuna con los hinchas! pic.twitter.com/5ilZI5Q52R
— Marcos Rojo (@marcosrojo5) January 18, 2016
Rojo has made just six Premier League appearances in an injury-hit season for the Argentina star.
The 25-year-old moved to the Red Devils in a £16m deal from Sporting Lisbon in 2014.
United are in fifth place and two points behind fourth-placed Tottenham Hotspur in the Premier League table.
Louis van Gaal’s side host Ronald Koeman’s Southampton side in their next Premier League game at Old Trafford next Saturday.
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