Dutch midfielder has signed for Paris Saint-Germain this summer after leaving Anfield on a free transfer
Reds stars including Virgil van Dijk and Alexander-Arnold tweeted the photograph with the words "Unity is strength"
29-year-old England international midfielder said the title race was still not over
When the English top-flight was postponed on March 13, runaway leaders were just two wins from clinching the title
Reds have lost seven of their last 11 away Champions League games
Egyptian striker says the season isn't over yet as Reds' face Spurs on June 1 in Madrid