Liverpool defender Martin Skrtel knows only too well the damage an in-form Andy Carroll can inflict on a side.
The Slovakian was part of the Reds' line-up which crashed to a 3-1 defeat inflicted by Newcastle at St James' Park in December - a game in which Carroll was at his bruising best.
Liverpool's new no.9 grabbed an assist and a goal - a thunderous effort from outside the area - to inspire the Magpies to victory, and Skrtel is relieved Carroll is now his teammate at Anfield.
"I remember this game and it was very difficult for us defenders because he is a great player," the Slovakia international told the official Liverpool website. "He's strong and a big lad and it's very difficult to play against him.
"Now I am happy he is in our team. It's good to have a player like him in our team."
Although he has yet been able to demonstrate his full talents in a Liverpool shirt, Skrtel is backing Carroll to quickly form a formidable strike partnership with fellow January acquisition Luis Suarez.
"He's [Carroll] definitely one of the toughest strikers I've played against in the Premier League. He's strong, he is good with his head and he can keep the ball," added the 26-year-old.
"I don't know how defenders will feel but they could be scared because Carroll and Suarez is a very strong forward line.
"Andy can help Luis because he can keep the ball for him,
"Luis has more skills and working with the ball. This is good for them working together and could be good for the club."
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