Salah continued to shine in the English Premier League by scoring two goals and making a goal against Brighton in the match of the 34th Premier League match that the Reds won 3-1.
“I was aiming to send the ball to the Christmas boy, Mo,” said Robertson, on his personal account on Instagram, addressing Salah.
Robertson means their Dutch colleague Virgil van Dyck, who was celebrating his 29th birthday on match day.
The Scottish defender, who took part as a substitute, sent a cross from a corner kick that the Egyptian international met at the nearby post with a rare header that netted in the net.
After the meeting, Salah told Sky Sports: “We have practiced this game for the past two days.”
“Finally Robertson made one of my goals, so I’m happy with that,” he joked.
The former Roma winger reached its 19th goal in the current season of the Premier League and is the third scorer of the competition so far.
Top scorer Jimmy Vardy, Leicester City, leads 22 goals, followed by Pierre-Emerick Aubameyang with 20 goals.
Salah crowned the league’s top scorer with 32 goals in the 2017-2018 season, and won him equally with Aubameyang and his Liverpool teammate Sadio Mane with 22 goals last season.
Salah also became the fourth player in the history of Liverpool to contribute to his team’s record 100 goals in the league after he scored 73 goals and made 27 in 104 games he participated in.
The former Arab Contractors player entered that list after Stephen Gerrard, Robby Fowler and Michael Owen.
Liverpool have won the Premier League title this season, and seeks to cross the 100-point barrier, having 92 points 4 rounds before the end of the season.
Liverpool is preparing to meet Burnley in the next round on Saturday.