Van Dijk hobbled out of last weekend’s Merseyside derby with a knee injury following a horror challenge from Jordan Pickford and subsequent scans showed the 29-year-old had torn his ACL and will have to undergo surgery.
It means the Netherlands defender will be out of action for several months and Jurgen Klopp will have to rely heavily on Joe Gomez, Joel Matip and makeshift centre-back Fabinho this season.
Gomez and Fabinho showed signs of a promising partnership with a clean sheet in Amsterdam on Wednesday night as Liverpool got their European campaign off to a winning start.
Nicolas Tagliafico’s own-goal in the 35th minute was enough to separate the two sides and Van Dijk will no doubt have been watching on from home.
Asked whether Van Dijk had sent a pre-match message following Liverpool’s win, Wijnaldum said: ‘He wished us good luck in the group chat on WhatsApp.
‘For me, I don’t think it’s really the right time to speak to Virgil about football because football is not that important.
‘I think for him and for me when we speak with each other, the most important thing is his personal life, his rehab and those things.’
Wijnaldum added: ‘When I speak with him, it’s more about life than about football.’
‘Those are the conversations that we’ve had right now.
‘It might change in a few months because then he’s further along in his rehab.
‘But for now it’s not the right time to speak about football with Virgil.’
Fabinho vowed to step up as best he could in Van Dijk’s absence following Liverpool’s narrow win at the Johan Cruijff ArenA.
‘Personally, when I knew Virgil was out for a long time it was a little bit of a shock because I think he’s the best defender in the world,’ the Brazilian told Viasport.
‘Most of all, he’s a leader of the team, in the dressing room he always keeps the good mood, the good atmosphere, and of course we miss this.
‘But we have to keep going, we have to try to do the best and win the games for him as well.
‘We have Thiago, Alisson, Joel, some players injured right now, they try to recover as quickly as possible and we have to try to win every game.’
Asked how his role will change if he becomes a regular at centre-half, Fabinho replied: ‘Tactically, I have to be always ready for the long balls, try to organise the team.
‘It’s not easy but I have to do what Virgil always does and talk to the team, try to be a leader.
‘Of course I’m not Virgil, but I’ll do my best.
‘It was very important for me and the team to keep a clean sheet today for the confidence of the team.
‘Sometimes it’s little details like second balls, being ready, pressing well. I try to be in this role as well.’