Liverpool have been dealt a worrying fitness update after Virgil van Dijk was deemed unfit to represent the Netherlands in their upcoming Nations League fixtures, raising fresh concerns over the availability of the Reds' influential captain.

The 35-year-old defender will not feature for his country during the international break, according to an announcement attributed to the Netherlands national team.

The update confirmed that Van Dijk was not considered fit enough to participate in the forthcoming matches.

However, the precise nature of the defender's fitness issue, its severity and any potential recovery timeline have not yet been disclosed.

For Liverpool, the news will undoubtedly be met with concern, particularly given Van Dijk's importance to the heart of their defence.

The Dutchman has been a cornerstone of Liverpool's success since his arrival from Southampton in January 2018, establishing himself as one of Europe's most commanding central defenders.

His leadership, aerial dominance and ability to organise the defensive line have made him an indispensable figure at Anfield.

Beyond his defensive qualities, Van Dijk's influence extends throughout the dressing room, where his experience and composure continue to play a crucial role.

The timing is particularly frustrating for Liverpool manager Andoni Iraola, with his side preparing for another demanding run of fixtures.

Van Dijk played the entire 90 minutes of Liverpool's 3-1 Premier League victory over Crystal Palace on Sunday and has featured in every minute of the Reds' league campaign so far.

He has also started three of Liverpool's four Champions League matches, highlighting the considerable workload placed on the veteran defender. 

The Dutch Football Association (KNVB) confirmed that Sunderland striker Brian Brobbey has also withdrawn from international duty, with neither player sufficiently fit following the weekend's action.

No replacements will be called up, leaving Netherlands manager Xavi Hernández with a 23-man squad for Friday's home encounter against Greece and Monday's trip to Germany. 

Van Dijk's withdrawal comes just weeks after he celebrated his 100th international appearance during October's 2-1 Nations League victory over Serbia.

For Liverpool, attention now turns towards their Premier League meeting with Manchester United on 22nd November.

With Dominik Szoboszlai also facing fitness concerns following Sunday's victory, Iraola will be hoping the international break provides an opportunity for recovery rather than further disruption.

Crucially, neither Liverpool nor the Netherlands have confirmed the extent of Van Dijk's problem or indicated how long he could be sidelined.

His absence from international duty may ultimately prove precautionary, but Liverpool supporters will be anxiously awaiting further updates.

How will Liverpool deal with the absence of Virgil van Dijk if it is a serious fitness injury? Leave your thoughts and comments below.