Matip's compatriot Vincent Aboubakar netted five in five in the group stage - only six players scored more - and his relationship with Moussa Marega and Yacine Brahimi represents a severe test for Liverpool's backline.
Mohamed Salah is a bit of a boring pick for a key player (because it's so obvious) for Liverpool.
Porto are now leading the way in the Portuguese Primeira Liga and boast a two-point advantage over both Benfica and Sporting Lisbon, while also having a game in hand.
Liverpool have gone undefeated in their last 10 UEFA Champions League ties.
Nathaniel Clyne is the last player to get off the treatment table, after completing his recovery from a long-term back injury. "I don't know if Porto are going to be afraid but we are going to make their life hard and make them suffer", said the Brazilian. "For all goalkeepers it is the same, they need that [confidence]".
Chelsea may be limping along in the Premier League - despite their 3-0 victory over West Bromwich Albion - but they have the quality and the experience to trouble Barcelona over two legs. "And of course we as a team we will never do that".
A regular fixture in Sergio Conceicao's defence, the versatile Spanish centre-back has not played since the Taca da Liga semi-final defeat to Sporting CP on 24 January due to a thigh problem, missing the goalless draw with Moreirense and subsequent wins over Braga, Sporting and Chaves.
Nain Phisal Gaye : Salman Khan and Sonaksh Sinha rekindle their lovely magic
But instead of Salman drooling over Sona "mast mast do nain" this time, Sonakshi's has her eyes for one and only Salman Khan . The song is sung by Payal Dev, music has been composed by Sajid-Wajid while the lyrics have been penned down by Kausar Munir.
Charities should see Oxfam's sex allegations response as wake-up call - Mordaunt
Former Deputy Chief Executive Penny Lawrence also resigned on Monday as the scandal continued to grow. Oxfam received £31.7 million (35.7 million euros, $43.8 million) from state coffers past year .
Fayetteville Mardi Gras Parade - Rain Or Shine
There were some 70 parades in New Orleans during the 2016 Carnival season, with eight of them scheduled for Tuesday. Here, as in Mardi Gras we are reminded of a time when protests were just as necessary, but not as brightly lit.
"Last summer we dreamt of it and now we are here".
James Milner is also pushing for a recall but I think Klopp may stick with Gini Wijnaldum and Alex Oxlade-Chamberlain after they performed well during the 2-0 win at Southampton at the weekend. It's the last 16.
"They play good football but we'll go over there determined to get a good result in the first leg", Karius said of Wednesday's match. But we believe in Anfield. It's a place where the atmosphere can really effect the outcome of a game.
"We've got two big aims now that we're out of the FA Cup, which is a disappointment, but we've got these two big aims to go for until the end of the season and that's what will drive us forward".
"I would have liked to play with this guy".
Felipe is suspended for Porto, having been sent off against Monaco in the last match of the group stage.