Signed for £75m in January, Dutch defender Virgil van Dijk appears to be settling in to life at Liverpool following Wednesday night's 5-0 win over Porto.The 26-year-old joined from Southampton but struggled in his first few weeks in Merseyside."I think it will prove to be a great signing, but he hasn't hit the ground running," said Jamie Carragher a fortnight ago."I think he needs to get fit and lose a bit of weight. He actually looks too big. Maybe that's to do with not having a pre-season."Van Dijk has since kept successive clean sheets away at Southampton and Porto, helping the Reds to a 5-0 win in the first leg of their Champions League last 16 clash in Portugal.Sadio Mane scored a brilliant hat-trick in a mesmerising Liverpool attacking display - but Jurgen Klopp's defence looked remarkably resilient too.

Carragher on Van Dijk's Champions League debut for Liverpool

The retired Liverpool defender was waxing lyrical about the club-record signing - and with good reason.

"Van Dijk has been immense," Carragher said in the pouring rain on Wednesday night.

"The best way to describe Van Dijk is that he's like a man playing against boys.

"And this is Champions League level - it just looks so easy."

Carragher was absolutely spot on. Van Dijk's highlights away at Porto perfectly prove his point.

Van Dijk's individual highlights v Porto

It was a superb individual performance from the £75m man but his presence seems to be rubbing off on the rest of the defence too.

Van Dijk's range of passing on his European debut for Liverpool was simply breathtaking and it looked like the Porto attackers would never get the beating of him.

His individual highlights against Porto are well worth a watch - £75m looks a bargain on this evidence.

What Liverpool fans were saying about VVD on Twitter

Social media was abuzz with praise for the towering centre-half. The calamitous Dejan Lovren looks like a completely different player next to Van Dijk.

The convincing 5-0 win has sent out a message to the biggest teams in Europe.

Even John W. Henry, who rarely comments on Liverpool, tweeted at the full-time whistle.

"Tremendous effort in 5-0 win tonight away from home in Champions League,” he tweeted. “A lot of talent displaying selfless, smart play we all can be proud of. Huge, satisfying step toward final eight.”

It's certainly an exciting time to be a Liverpool fan.