5 active UFC veterans who should have retired already

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#4. Raphael Assuncao - UFC bantamweight

Having made his MMA debut in 2004, Raphael Assuncao is one of the most experienced veteran fighters in the UFC's bantamweight division.

Whilst experience can be enough to mask the lack of speed and durability in the bigger weight classes, older fighters tend to struggle the lower in weight they go.

This is exactly the case with Raphael Assuncao, who is now on a four fight losing streak. His last two fights have both ended via KO. His most recent came against Ricky Simon who, despite being primarily known for his wrestling prowess, right hooked him into oblivion.

In his prime, Assuncao went head-to-head with the likes of T.J. Dillashaw and Pedro Munhoz. Now, though, he is unable to even outlast the rapidly declining Cody Garbrandt.

UFC 250: Assuncao v Garbrandt

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#3. Donald 'Cowboy' Cerrone - UFC welterweight/lightweight

Donald 'Cowboy' Cerrone has admittedly overcome calls for retirement in the past. He altered his game to take a more technical approach in an effort to prolong his career.

UFC Fight Night: Cerrone v Morono

However, it seems clear that his time as a fan favorite action fighter is at an end. Plainly put, Cerrone does not have the durability to compete with the top fighters in either the lightweight or welterweight divisions. 'Cowboy' has been knocked out in four of his last six bouts.

Furthermore, Cerrone has not won a fight in his last six UFC octagon appearances, with five losses and one draw. Even outside the UFC, Cerrone has been having a hard time, as both Craig Jones and Joe Solecki submitted him in recent grappling competitions.