The Toronto Raptors could be undergoing major changes this offseason and they have already started by firing head coach Dwane Casey last week.

Casey's seven-year tenure came to an end after they suffered a third consecutive playoff elimination at the hands of the Cleveland Cavaliers.

There's no doubt that president Masai Ujiri and the front office are looking to shake things up in the hope of finally getting over the hump to compete for a championship.

Toronto will have a new voice in the locker room with a new coach but it's not out of the question that they could make a big roster move too.

Breaking up their All-Star backcourt of DeMar DeRozan and Kyle Lowry could be a possibility as they have previously considered trading the former.

According to Marc Stein of the New York Times, the Raptors "quietly explored" their trade options for DeRozan and they could do the same again this summer.

"Word is that the Raptors quietly explored their DeMar DeRozan trade options last summer — before they had any inkling that a breakout season was looming — and I’d fully expect Toronto to explore those possibilities again. Not just with DeRozan but with anyone and everyone on the roster," Stein said.

This shouldn't come as a huge surprise to their fans as teams often test the market for their best players to get an idea of what their value is.

It doesn't necessarily mean they're actively looking to make a trade but general managers are always keen to know if their star players have more value elsewhere.

But there's no doubt that if the Raptors want to shake up their roster, trading DeRozan would be their best way of doing it.

The 28-year-old signed a five-year, $139 million contract with the franchise in the summer of 2016 but there are teams who would be willing to take on that contract as he remains one of the most talented players in the league.

It's highly unlikely that any team would take on the big contracts of either Lowry or Serge Ibaka so shipping their shooting guard would seem to be their only option as he's their most valuable asset.

He averaged 23 points and 5.2 assists last season but it would come as a real shock if Toronto was to entertain the thought of offloading their leading scorer and arguably the best player in their history.

Ujiri will definitely explore all the options open to him but surely trading their superstar won't be something he takes into serious consideration.

Listen HERE to episode two of the new GiveMeSport NBA podcast, featuring New York Times senior writer Marc Stein.

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