Morneau has been on the disabled list with a concussion for nearly three months. He is expected to need at least two more rehab games before getting the green light to return to the Rockies.
Gonzalez lost a four-game hitting streak with his 0-for-2 effort Thursday before his removal from the game.
Morneau is expected to need at least three games before he can return to the team. A concussion has kept Morneau out since mid-May.
He hurt the knee when he fouled a pitch off it.
Gonzalez has assured that he's "100 percent" certain that he will be back in action, per the Orange County Register.
Gonzalez, who was hitless in his only two at-bats with one strikeout, left in the bottom of the fifth inning. The severity of his injury or timetable for his absence has yet to be revealed.
Half of Zimmerman's home runs this season have come in the 27 games since he returned from the disabled list at the end of July.
Howard has been out of the Phillies lineup in five of the last six games, with Jeff Francoeur taking his familiar No. 4 spot in the lineup. Part of that is due to Philadelphia's youth movement and part of it had to do with the team facing four left-handed pitchers.
"I'm ready to get back in there," Howard told the Philadelphia Daily News. "Ready to get home and try to get back after it."
Mercer has been out for five weeks with a knee injury. It remains to be seen how often he plays considering the emergence of Jung Ho Kang at that position.
Ishikawa has played sparingly this season with just 12 hits in 59 at-bats over 39 games.
Goldschmidt hit two home runs, drove in four runs, scored three and even stole a base, as he filled up the box score on Saturday. He launched a two-run home run in the first inning to give the D-Backs an early 3-0 lead. He added another two-run shot in the seventh, giving him 24 longballs on the year.
He also stole his 20th base, giving him his first-career 20-20 season.
Goldschmidt had gone 22 games since his previous home run, which came back on July 27.