Glasgow are boosted by the return of captain Kyle Steyn to the starting team after injury, with Dan Lancaster preferred to Hastings at 10, while Stafford McDowall gets the nod at 13 over Jones, who misses out entirely.
They are selection calls that suggest Glasgow are tooling up for the huge physical battle the Bulls are sure to bring.
“It’s a very simplistic gameplan for the Bulls – very powerful, very direct, very confrontational,” says Brown.
“They’ll have hard runners off nine and a very good set-piece. The scrum is going to be an absolute mammoth battleground for Glasgow. To be able to get parity there, it’s going to be huge for them.
“If the Bulls get broken field, they’ve got such dangerous runners in their back three. So, it’s going to be a tough game, a big challenge.
“I’d expect Glasgow to come through, if not comfortably, with a decent margin in the end. But, certainly, I think for 60, 65, 70 minutes, it could be a pretty intense battle.”