It's safe to say that Martin Skrtel is one of the most passionate players plying his trade at Liverpool.
The Slovakian defender has been on the sidelines recovering from a hamstring injury and hasn't featured for the first-team in the Premier League since the club's horrendous 3-0 defeat at the hands of Watford back in December.
But Skrtel is well and truly on the mend and has now played two games for the club's Under-21 side. It's safe to say, however, that his second fixture - a cup semi-final defeat at the hands of West Ham United - didn't entirely go to plan.
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As you can see in the video below, the robust centre-back picked up a yellow card for a woefully mistimed tackle at the start of extra time (6:05), while he was further embroiled in controversy after taking down another Hammer on the edge of the box (9:10).
Skrtel, however, was far from pleased with the decision and furiously reacted, shouting at the referee and coming face to face with West Ham's young number 11.
The towering defender received his marching orders, leaving his side with it all to do. Ultimately, Liverpool, who were trailing by two goals to one at the time, eventually lost the game by three goals to two in a frantic, yet thrilling contest.
Here's the Liverpool side, including the likes of Adam Bogdan and Connor Randall, that failed to overcome a spirited West Ham team.
Liverpool U21s v West Ham: Bogdan, Randall (O’Hanlon 90′), Skrtel, Maguire, Flanagan (Hart 45′); Chirivella (M Gomes 105′), Brannagan; McLaughlin, Teixeira, Kent; Ojo
So, will we see Skrtel back in the first-team anytime soon? In truth, he may well have to bide his time - the likes of Dejan Lovren, Mamadou Sakho and Kolo Toure have been proving their credentials recently - but it shouldn't be too long before he establishes himself as a key component to Jurgen Klopp's side once again.
Skrtel certainly has the qualities to express himself under Klopp's regime on Merseyside and will be desperate to prove his fitness sooner rather than later.
The defender certainly won't be featuring at Old Trafford tonight, but his teammates will be well aware that they will have to be at their best to secure their place in the quarter-finals of the Europa League.
Liverpool head into the game as favourites - they hold a 2-0 first leg lead - but United should come out fighting from the first whistle on home soil this evening.
Do you expect Skrtel to have a key role to play between now and the end of the season? Have your say below!