It’s safe to say Kimi Raikkonen is enduring a rocky patch in his career.

The 38-year-old, who won the 2007 world championship, is struggling to match the qualities of teammate Sebastian Vettel, and it proved to be the case yet again on Sunday.

The Canadian Grand Prix saw Raikkonen take sixth whilst his German counterpart ran away with the victory, finishing seven points clear.

After a lacklustre finish, Raikkonen’s display sparked criticism and it also prompted former F1 driver Martin Brundle to give his thoughts on the slump the Finn is facing.

The 59-year-old moved to F1 after finishing second in the 1983 British Formula Three Championship.

However, Brundle found the top tier difficult after failing to pick up a single victory in his three years in the division.

As a racer who found F1 challenging, Brundle could very much sympathise with the Raikkonen’s difficult period of late.

However, the Sky F1 commentator didn’t hold back when he gave his view on the racer this week.

Speaking in his Sky Sports column, Brundle said: "Ferrari have to be concerned about Kimi.

“l know he's one of the most popular drivers around, but after another mistake in qualifying he finished nearly 30 seconds behind his teammate on Sunday.

"What are they going to do? In my view Kimi has reached the end of the road. He still shows a flash of real speed from time to time but he can't relentlessly deliver the required race pace any more.

"Nor is he working as an effective rear-gunner to Seb.”

Brundle later added who Ferrari should look to if they are to replace Raikkonen.

"Winning the Constructors' Championship is super-important to Ferrari - they don't put the list of their titles on their road car dashboards for fun - and if they want to win it in this era against Red Bull or Mercedes they need a Ricciardo or a Leclerc alongside Vettel next year.

"And Vettel needs to deal with that.

"He clearly has the head for F1, and he just looks like the complete package, even if his picture in the F1 grid graphics make him look like a startled Harry Potter.

"Ferrari don't often take risks on young drivers but there's a changing of the guard going on between generations.

"The field can be divided into three groups with the likes of Fernando and Kimi at one end, Grosjean and Hulkenberg in the middle ground, and a group of young fliers coming through - and Ferrari don't want to be caught out."

Raikkonen will be looking to bounce back sooner rather than later, but could his days at Ferrari really be nearing an end?