Arsene Wenger changed the face of English football, according to former Arsenal defender Lee Dixon.
The 68-year-old announced on Friday that he will depart the Gunners at the end of the season, having won three Premier League titles and seven FA Cups in almost 22 years with the London club.
Dixon, who played under Wenger between 1996 and 2002, feels his revolutionary impact has been taken for granted in recent years and now is the time to reappraise his influence in England.
Writing for The Guardian, Dixon said: "There is no doubt he changed the face of English football. He was the first. It was all him.
"His legacy is not only Arsenal based. It is English football-based because of where the game was when he came in and how clubs and players operated.
"The physiology side of the game, the social side, training – he came in and ripped up the handbook. Everybody said, 'Who is this fella?' and the next minute they were all copying him.
"The advancements in terms of science and facilities and all the support available for elite athletes is testament to him. I truly believe he pushed the button to start all of that. It is easy to lose track of the fact he was the great innovator."
Another former Arsenal defender, Martin Keown, believes leaving the club will feel like a "bereavement" for Wenger.
Keown said in the Daily Mail: "Beyond his family, Arsenal and football are Arsene Wenger's two greatest loves. To give up one of them will feel like a bereavement.
"Arsene will find it difficult to come to terms with it. While he has made the right decision to leave after 22 years at the helm, I am sad that he could not find the perfect time to bow out.
"He is so emotionally attached to the club that it seemed impossible for him to make the decision. He stayed for longer than he should have but given his immense love for the club I fully understand why he could not bring himself to call it quits."
Keown also feels strongly that the Arsenal board should do whatever it takes to retain Wenger at the club in some capacity.
"Even if he goes to manage another team, it would be a crying shame if he is completely lost to Arsenal," he added.
"Wenger may be hurting but when the dust settles, a job should be found for him on the board. His wisdom, knowledge and love for the club is too valuable to be discarded.
"All Wenger has created presents an incredible opportunity for whoever replaces him but there will be ample opportunity to discuss who should take over.
"Now is the time to celebrate Arsene Wenger's remarkable reign and ensure that the club's greatest manager leaves on a high."
|Ancelotti an inspiration for PSG boss Tuchel|
|Persepolis 1 Al Sadd 1 (2-1 agg): Iranians into first AFC Champions League final|
|Wales boss Gatland returns to New Zealand after father´s death|
|Sri Lanka hand England their heaviest ODI defeat|
|Nuggets guard Will Barton undergoes surgery|
|Surprise package Svitolina closes in on semi-final berth|
|Alexander-Arnold targets glory at home and abroad|
|Pogba relishing emotional Juventus reunion|
|Alba hopes Lopetegui keeps Real Madrid job|
|Valverde not expecting Messi magical recovery|
|Wozniacki calms fears over knee injury|
|Maybe it´s my interviews - Klopp on Liverpool´s room for improvement|
|Language no barrier to Dortmund dangermen Reus and Alcacer|
|EPCR confirms no replay of Bath-Toulouse Champions Cup fixture|
|F1 Raceweek: Five the magic number as Hamilton eyes Mexico repeat|
|RFU to introduce in-season breaks for players|
|Nainggolan misses Barcelona trip|
|Wozniacki battles through knee complaint to down Kvitova|
|Alcacer: Two seasons at Barcelona not lost|
|Henderson, Keita to miss Liverpool´s Red Star clash|
|Khabib holds talks over Mayweather Moscow fight|
|Wolf in for Titz as Hamburg try to stop slump|
|Davies released from Wales squad as Evans comes in|
|Mbappe on track to match Messi and Ronaldo, says Giuly|
|Coleman, Kipchoge and Lyles among IAAF Male World Athlete of the Year shortlist|
|Serena Williams will win slams again sooner or later, says Seles|
|You always want the best – Ter Stegen open to Neymar return|
|Xavi: My teams will never use Mourinho´s style|
|I knew what I got myself into - LeBron appreciates Lakers are a work in progress|
|Mourinho: Ronaldo loves United but he will want to score|
|Cooper completes Rebels move and takes parting shot at Reds coach Thorn|
|Bellerin amazed by ´born champion´ Ozil|
|Penguins, kangaroos and ´Stone Cold´ Steve Austin: Halloween comes early for Trail Blazers|
|Ronaldo gunning for United, Aguero targets double record - Champions League in Opta numbers|
|Ill Vardy couldn´t stomach penalty decision – Puel|
|LeBron´s Lakers lose again, Magic stun Celtics|
|Bartomeu: No Barca return for Neymar, Valverde contracted until 2020|
|Simmons and ´stimulating´ 76ers in NBA Finals mix, says Longley|
|Falcons heap further misery on Giants|
|Vidic hails Ronaldo as ultimate professional ahead of Old Trafford return|
|Warriors´ Cousins nearing NBA return|
|Pogba can´t do the basics – Souness criticises Man United star|
|Messi absence big blow for Barca as Icardi talks up Inter|
|´You can´t cry, that´s true´ – Ronaldo responds to Isco|
|Bartomeu: Barca still competitive without Messi|
|Bills RB McCoy remains in concussion protocol|
|Raiders place Marshawn Lynch on IR|
|Emery calm over title talk after another Arsenal win|
|Green: Warriors have to clean up defensively|
|Mariners say Bolt talks ongoing amid reports contract offer was rejected|
|Proud captain Ozil revels in Arsenal´s ´sexy football´|
|Puel angry over Holding handball|
|Cilic breezes through in Basel, Anderson fights back|
|Ingram: Four-game ban better than we expected|
|Raiders send Cooper to Cowboys for first-round pick|
|Arsenal 3 Leicester City 1: Outstanding Ozil inspires comeback win|
|World Series 2018: Three reasons why the Dodgers will win|
|Yarmolenko out for six months after Achilles surgery|
|World Series 2018: Three reasons why the Red Sox will win|
|Ozil eclipses Klinsmann to become Premier League´s most prolific German|
|Allegri expecting Old Trafford battle against Mourinho´s United|
|Bertens feared she did not belong in Kerber clash|
|Returning Ronaldo expecting ´tough´ game against Manchester United|
|Cristiano Ronaldo confident of clearing his name amid rape allegation|
|Osaka looking to learn from losing start in Singapore|
|Kovac expects tough test against AEK Athens|
|Whyte gives Chisora deadline over rematch|
|Spartak Moscow sack Massimo Carrera|
|Atletico Madrid confirm fresh injury issue for Gimenez|
|Dolberg extends Ajax contract after Real Madrid links|