Zack Sanders is mentioned on the page of new Sunbeam Borg Ruiz!! Fulltext of Bo's page can be found here but the relevant section is as follows:
"While Ruiz preferred to spend free time alone, continuing practicing divination and unwinding with solitaire, teammates Zack Sanders and Harriet Gildehaus quickly took a liking to the new player, and Ruiz could often be found performing a variety of card tricks for one or both of them around the Moabbey grounds."