The 2017/18 campaign has been one to remember for Roberto Firmino.

He will be heading into the World Cup as arguably Brazil's first choice striker on the back of a stellar season for Liverpool, for whom he has scored 25 and assisted a further 15 this term. His performances in the Reds' excellent Champions League run have been a particular highlight - he has eight goals and five assists so far, and more could come in their two-legged semi-final clash with Roma.

And yet he was overlooked for the PFA Team of the Year released this week, with the three attacking spots being filled by teammate Mohamed Salah, Tottenham's Harry Kane and Premier League winner Sergio Aguero. How could Firmino not make it?

The answer is pretty simple - as good as he has been over the last eight months, the three players ahead of him have been that bit better.

Magic Mo

His teammate Salah has been breath-taking since making the switch from Rome to Merseyside. The Egyptian equals Firmino's involvement in goals, though where Bobby has 40 in all competitions, Mo has that many in the Premier League alone.

Overall, Salah has 53 goals and assists, which is made even more remarkable when you consider that this is his first season back in English football since his difficult time at Chelsea.

Arguably the best player in the Premier League this season, there was no way that Mo wasn't going to make the Team of the Year.

Stellar Sergio

Aguero's time as City's main man up front may be coming to an end with the emergence of Gabriel Jesus, but he certainly shows no sign of slowing down himself. The Sky Blues' all-time top scorer has been involved in 37 goals in his 39 appearances in all competitions this season, a simply staggering statistic.

27 of those goals were in his 25 Premier League games, including hat-tricks past Watford and Newcastle and a four-goal haul against Leicester.

He may not have the influence he once had within the City team, but he was still a no-brainer for the Team of the Year.

Cracking Kane

Surely this one needs no explanation?

37 goals in all competitions has seen England's best striker fire Spurs to what a third-consecutive finish in the Champions League qualification spaces will almost certainly be. Even though one of those goals was infamously questionable as to whether or not it should have been awarded to him, Kane has still been vital to Mauricio Pochettino's side's season, and is still the best striker in the Premier League.

It must be hard for Firmino to take not being included in the 11-man list of the best players in the league this season, but he has simply been unlucky in that there have been three others who have simply been incredible this season.