Regardless of what happens, it seems like Bourjos' role will change upon his return. He had been playing nearly every day in right field before he injured his right shoulder in Miami late last month. Aaron Altherr took his place on the 25-man roster, and he is expected to remain an everyday player the rest of the season.
That means there is a numbers crunch and a time crunch with Bourjos, Cody Asche, Tyler Goeddel and Jimmy Paredes in the outfield.
"I don't know if [Triple-A outfielder Nick] Williams is in the picture," Mackanin said. "I haven't talked about it. It depends on who we send out. But it would be nice to have [Bourjos] in the outfield with his speed."
Mackanin said there are no plans to have center fielder Odubel Herrera practice as a corner outfielder the remainder of the season.
Herrera has been struggling lately. He has hit .222 with a .641 OPS in 27 games since July 7, although he had three hits Sunday in San Diego. But Herrera has been bothered by an infection in his right foot, which he said has bothered him on the field.
"To run, to swing the bat," Herrera told the Phillies' interpreter. "Then I started treatment for it, so it feels much better."
Herrera said his foot has been bothering him since the team's last homestand.
Does he have any other theories why he has been struggling for longer than that?
"I don't know, I don't know," he said. "Who am I to know?"
Todd Zolecki has covered the Phillies since 2003, and for MLB.com since 2009. Read his Phillies blog The Zo Zone, follow him on Twitter and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.