As much as I’d rather pick Mercer, Larry Donald seems like the type of boxer who could sneak his way to a decision. He wasn’t necessarily a great technician but he could certainly box. Was probably more mobile than Mercer and had the chin to withstand his punches.
Yes I agree with you Donald had good movement was a solid boxer and also very durable aswell without looking at boxrec I think he was only stopped once. I think stylistically Mercer would have alot trouble with Donald.