"When you see it coming from within the organization, it's a good sight to see," Robertson said. "Just to know these are the guys you could be playing with in the future. Boog and Matt are [great] ballplayers and hopefully we're together for a long time."
Robertson, the Athletics top-ranked prospect according to MLBpipeline.com, collected five hits and raised his AFL batting average to .444.
Robertson, who has multiple hits in four of his last five games, also stole a base and drove in four runs.
"Just one of those days, you don't really know how to explain it, just finding holes," Robertson said. "Coming up to the plate today, I felt pretty confident just staying in my approach. Not trying to do too much as you can tell, five of my hits -- all singles."
Eventually Robertson may fill the shortstop void many expected Addison Russell, traded in July, to fill, but he's not the only A's prospect shining in Arizona.
Olson, the A's second ranked prospect, had 69 extra-base hits, including 37 homers, in 138 games with ClassA Advanced Stockton this season.
Olson added another extra-base hit to his stat line on Friday when he tripled to right-center field. The first baseman finished the game with three hits and three RBIs in five at-bats.
Powell, the A's No. 20 prospect, went 3-for-5 on Saturday and has at least one hit in all 10 of the AFL games in which he's played.
"In my eyes, he has an advanced approach," Robertson said. "He controls the strike zone well. If he's not walking, he's battling with two strikes, putting the ball in play and using his speed to get hits left and right. He's a good hitter."
Oakland's prospects stole the show in the lopsided affair, but Sean Nolin, a member of the Blue Jays organization, also turned in his best performance of the AFL so far.
Nolin, the Blue Jays' sixth-round pick in the 2010 Draft, had an ERA over 10 across his first three starts, but on Saturday he had everything working.
The left-hander did not allow a hit over three shutout innings and struck out five of the final six batters he faced.
Once Nolin's day was done, Mesa turned to Roberto Osuna for three innings and Matt Grace, Blake McFarland and Arik Sikula each threw an inning to complete the shutout.
"We put a lot of hard work in during the week," Robertson said. "Coming into this game we were all pretty loose and just having fun. We came out here hitting the ball pretty hard and once you put the quarter in the merry-go-round, it doesn't stop going. It was a fun day to be out here."