There are many key roles that have evolved over the years and became essential in modern football.
The flying full-backs; the holding midfielder; the false number nine.
But these new-age creations pale in comparison when it comes to the most important man in a football’s dressing room in 2015: the lad in charge of music.
Don’t agree with us? Well, just ask Southend United midfielder Ryan Leonard, who puts his impressive recent run of three goals in his last four games for The Shrimpers down to the introduction of one man into the club’s stereo system: Mr Justin Bieber.
Leonard endured a barren spell in front of goal, failing to net in eight consecutive matches, but since the Canadian popstar’s new album has been thrown on in the changing rooms pre-match, he’s managed to find his scoring touch once again.
He told Echo News: “Myself, Cokes (Ben Coker), Will (Atkinson), Wozza (David Worrall) and Hursty (Kevan Hurst) pretty much live together and we’re addicted to Justin Bieber’s new song.
“We all said that when one of us scored we would all do that celebration but it didn’t look quite as good on the television as I had imagined!
“It’s all a good laugh though and since we started playing Justin Bieber I’ve starting scoring again.
“I’m not sure it’s everyone’s cup of tea, especially Adam Barrett [Southend’s 35-year-old centre-back]”.
Fair play, Ryan. Whatever keeps putting the ball in the back of the net…