Pellegrino took the shock decision to drop Van Dijk against Chelsea, though he insisted the central defender was rested.
Van Dijk had started 11 successive games before the trip to Stamford Bridge and the timing of his omission will only increase talk of a potential January move away from Southampton.
Liverpool transfer target Virgil van Dijk was dropped by Southampton on Saturday, with Saints boss Mauricio Pellegrino questioning the player's commitment to the club.
"I will explain that they are human beings and don't have a good moment".
The Saints were left furious with Liverpool and their pursuit, and sources close to Southampton made it clear that the last thing they wanted to do was to allow the player to move to Anfield.
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Salah, 25 is also in the race for the African Player of the Year award to be awarded by the African Football Confederation (CAF) on January 4 in Accra, Ghana.
"I think this will happen but I think it's probably going to happen in the summer", the Scot said.
Former Celtic defender Van Dijk handed in a transfer request over the summer, but current side Southampton stood firm and the Dutchman remained at St Mary's, reporting Liverpool to the FA for an alleged illegal approach in the process.
"Also the market offers not much but we will be ready".
He said: 'I can't control the market, I'm not the owner of the player. I'm not the owner of the player. "I can have my opinion and this I have given to the technical director, to the chairman". After the board can decide altogether which is the best for the team.
Now, it seems that Southampton manager Mauricio Pellegrino will not rule out a departure for the player, who has also attracted the interest of Pep Guardiola, and thinks that while he wants to keep his best players, sometimes it's not possible.