The 29-year-old believes he can still improve and is eager to stay at the Hawthorns so that he can keep developing as a defender, citing the example of countryman Olof Mellberg
West Brom centre-back Jonas Olsson is keen to keep improving for the Baggies, insisting that his latest contract will not be his last.
The 29-year-old recently agreed a new four-year deal with the Baggies and believes he is far from his peak as a professional footballer.
Insisting he does not see himself playing at a lower level than the Premier League, Olsson also stated his preference for retiring if his performances were to dip rather than falling down the divisions.
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"This is definitely not my peak - I don't see this as my last contract," the Sweden international told reporters.
"I have my best years ahead of me as a centre-half: 31 years old, 32 maybe, is normally where you peak.
"The nature of my character will help. If I don't see myself developing, that will be time to hang up my boots or find something better to do. I don't see myself playing at a lower level when I'm 36 or 37.
Citing the examples of his fellow countryman Olof Mellberg and team-mate Gareth McAuley, Olsson claimed that defenders only get better with age and believes he can produce at the top level for years to come.
He continued: "I want to get better. That drives me and motivates me. Gareth [McAuley, a fellow centre-half] has just turned 33 and probably never played better. Gareth came to us when he was 31, and this is perhaps his best-ever form.
"Centre half is a position where you tend to get better because of age - think of Mellberg. Experience, positioning, the way you read a game - that only gets better as you get older.
"Since I've come to England, I've become a better defender. I think I'm learning every year."