Roy Keane has achieved it all with Manchester United - he has won the Premiership seven times, the European Cup once and FA Cup four times.
But now the archetypal midfield general has announced that when this season ends he will see out the rest of his playing career away from Old Trafford.
BBC Sport looks back at Keane's remarkable 15-year career to date and picks out the peaks and the moments he might, perhaps, rather forget.
1990 - BIG BREAK AND BIG NIGHT OUT
Nottingham Forest boss Brian Clough pays League of Ireland club Cobh Ramblers £10,000 to sign Keane.
Just a year later, he makes his international debut for the Republic of Ireland in 1-1 draw with Chile in Dublin.
However, he soon gets into trouble with Republic boss Jack Charlton when he goes out drinking after a friendly against the USA and keeps the team coach waiting the following morning.
1993 - A BRITISH TRANSFER RECORD
After a scramble for his signature, Manchester United win the race to capture Keane for £3.75m.
The Cork-born player had made 154 appearances and scored 33 goals for Forest.
1994 - DOMINATION BEGINS
In his first season with United, Keane wins his first League title and FA Cup Double. (He achieves the feat again in 1996)
And in the summer, he helps the Republic of Ireland reach the second round of the World Cup in the USA, playing in all four matches.
In 1997, following Eric Cantona's departure, Keane is made United captain.
1999 - TAINTED TREBLE
In January Keane claims he will leave United if new contract talks do not satisfy him.
In April he is sent off in their FA Cup semi-final replay win over Arsenal for two bookable offences.
He is also booked in the Champions League semi-final second leg against Juventus which rules him out of the final against Bayern Munich.
In May he wins the Premiership again as United regain the title from Arsenal to complete an historic League, FA Cup and Champions League Treble.
2000 - PEERS, PRAWNS AND PAYDAYS
Keane is named PFA and Football Writers' Association player of the year as he wins the Premiership title for an incredible sixth time in eight years.
But in the same year, Keane is furious that a club letter to fans blames season ticket price rises on his £52,000-a-week wages.
And he follows that up by labelling sections of United's support as "the prawn sandwich brigade" following what he felt was a poor atmosphere in the club's Champions League clash with Dynamo Kiev.
2002 - RAGE AND REVENGE
Keane is thrown out of the Republic's World Cup squad mid-tournament after a slanging match with manager Mick McCarthy.
Back in the domestic game, Keane badly injures Alfe-Inge Haaland when he stamps on the Norwegian's knee. He is dismissed for the challenge.
Keane later confesses in his autobiography "I waited until five minutes until the end and hit him hard".
He claims it was revenge for Haaland's part in a challenge - in September 1997 - which damaged Keane's knee and ended his season.
2003 - ANOTHER TITLE AND A HALF-CENTURY
The good times return in 2003 as Keane lifts the Premiership trophy at Goodison Park as United hold off Arsenal for the title.
And two years later, he scores his 50th goal for United in 2-0 Premiership win over Birmingham.
2004 - DISMISSAL BEFORE THE DEPARTURE
Keane is sent off as United lose to Porto in the first-leg of their Champions League last-16 tie.
He misses the second leg at Old Trafford as United are knocked out of Europe by Jose Mourinho's eventual champions.
In September 2005, Keane announces he is set to leave United at the end of the season after 13 years at the club.
He hints he will continue to play for one or two more years - but not for an English club.