Saul 'Canelo' Alvarez is currently gearing up for his Madison Square Garden bout with Rocky Fielding this Saturday.

The 28-year-old Mexican has been hitting the gym ahead of his fight with the Merseysider, and stands at a new weight of 168lbs, as he showed off via an image posted on his Instagram account.

Canelo posted a photo of him looking stern down the camera, with the fighter previously having his six-months drugs ban back-dated, meaning he was free to fight from August.

For the first time in his career, Canelo will be fighting at super-middleweight, which is the reason behind him beefing up and putting on the pounds ahead of fight night.

His last fight, which took place in September of this year, was fought at middleweight.

On that night, Canelo impressively defeated Gennady Golovkin, but since then, he has put on a minimum of eight pounds in order to make the new weight.

Meanwhile, Liverpudlian Fielding, who has been preparing for his fight in Germany, is looking forward to testing himself against Alvarez.

"I’m enjoying this now," he told reporters earlier this week, as per Daily Mail.

"Yeah it’s different to Liverpool but this what I’ve working for all my career.

"It’s nice to be recognised in the street. It’s very nice to be in a big fight against a top operator.

"I like the attention. And I’m ready for the fight against a good opponent. I won’t freeze in the ring any more than I’m freezing here. I can’t wait."

Meanwhile, Fielding's trainer Jamie Moore feels Alvarez has "underestimated" his man.

"Canelo has underestimated him and doesn't realise how good, or how big, Rocky is," Moore told Sky Sports' Toe 2 Toe podcast.

"The problems that Canelo will have to overcome are height and reach. He will have to make up for the difference in length [which creates] danger that he will walk onto shots.

"We have got questions that we want Canelo to answer. We won't show him too much respect because he'll sense that, and feed off it.

"Rocky has to gain Canelo's respect."