• Hall of Famer Rickey Henderson was back in A's camp on Friday, aiding in a handful of baserunning drills. He'll be around camp every so often, as he's done in years past, and will continue to help in Minor League camp, as well.
"As much time as we get with him, whether it's now or in the season, we try to tailor it around base running," Melvin said. "A guy like that automatically commands respect out of guys, based on what he did."
• Though such actions are normally reserved for the regular season, manager Bob Melvin showed no hesitation in charging out of the dugout to share some words with home plate umpire Jonathan Saphire in the eighth inning of Friday's 2-2 tie against the D-backs.
Melvin was arguing that Adam Rosales, racing home from third base on Grant Green's potential sacrifice fly to center field, was safe at the plate, after Saphire called him out to end the inning.
"We got some guys battling there," Melvin said. "Rosie's sliding head first, his whole hand on the plate, Green's putting together a good at-bat to try to get the run in. I know it's bad form at times in Spring Training, but when you have some emotion inside you and you're pulling for your guys, you go out there and do something like that.
"He was safe. I could see from where I was."
• Second baseman Jemile Weeks made his first start since March 1 on Friday and went 0-for-2 with a walk. Weeks is returning from a bruised right shoulder, and although he has plenty of at-bats to make up in the final two weeks of preseason action, Melvin still plans to give all of his second-base candidates equal playing time.
Jane Lee is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.