The Warriors player of the year dispossessed John Barclay of the openside berth as he produced one of the most memorable debut seasons in a Glasgow shirt last time out.
While Barclay ended the season at No.8, Fusaro has no doubt that the Scotland international will come back from his honeymoon even more determined to reclaim the shirt he came to regard as his own personal property.
Fusaro said: "Although I may have ended the season in possession of the No.7 shirt I know that John will come back from his summer break more determined than ever to reclaim it.
"He has been a fantastic model of consistency for Glasgow over the seasons and for me he is the benchmark.
"John will be coming back from Scotland's victorious tour of Australasia with his confidence high and obviously after his honeymoon there is sure to be a spring in his step. So I know the type of dogfight I will face to try and hold onto the openside slot.
"But if you have two players battling it out as we will then hopefully that means Glasgow will get the absolute best out of us and that will benefit Gregor Townsend and the rest of the squad."
Tongan international No.8 Viliami Ma'afu is set to join up with Warriors next week and Fusaro has no doubt that the former Super Rugby star can have a huge impact at Scotstoun next term.
The Glasgow ace said: "Obviously with Johnnie Beattie having left we needed someone in who was a big powerful ball carrier and from what I hear Viliami is great at that.
"It is just fantastic that Glasgow have been able to attract major internationals like him who starred at the World Cup.
"Already we have seen with Angus Macdonald just how big an impact he has made during the first four weeks of training. Angus is also known for his versatility, so the competition across the back row is going to be frightening next season."
Fusaro is enjoying a week off after Glasgow completed the first four-week block of their pre-season. He is looking forward to the second block which will culminate in a training camp in France.
He said: "Traditionally during the second block we see a lot more of the rugby ball. We will get a lot of our Scotland boys back which is great.
"It was amazing that even although Chris Cusiter had been on the Scotland tour he came in at the end of last week and joined in. That shows just how up we all are for the new campaign."