PHOENIX -- D-backs general manager Kevin Towers is still not sure what happened to cause former outfielder Jason Kubel to suffer such a dramatic performance drop in the second half of last season and into this year.
Kubel hit .293 in the first half last year and dipped to .201 in the second.
This season, Kubel posted a slash line of .220/.288/.324 as he battled a variety of leg ailments.
"It's still baffling what happened to him," Towers said. "He had such an incredible three-quarters of a season last year and then really wasn't the same player."
Kubel was dealt Friday to the Indians along with cash considerations in exchange for a player to be named later or cash. The player the D-backs will likely receive in the deal is "a guy that more than likely will come up here in September," Towers said.
The D-backs saved about $200,000 in the deal.
Bloomquist knocks off rust immediately
PHOENIX -- D-backs shortstop Willie Bloomquist did not show any rust from his two-month stint on the disabled list when he went 3-for-4 on Wednesday night.
Bloomquist had been activated earlier in the day after being on the DL since June 27 with broken bones in his left hand.
"Hand feels good," Bloomquist said. "Everything is good. I felt good really from the day they cleared me to start swinging. I haven't had any issues with it, so obviously the rehab we did was good and worked good. I think everyone's opinion on how to handle it was right on."
Bloomquist had been itching to get back on the field for a while and not long after playing in his first rehab game he was already lobbying manager Kirk Gibson.
"Willie has been saying he is ready for a long time," Gibson said.
Judging by the three hits he had Wednesday, he was right.
"I just needed a few at-bats to feel good and I told them I was ready to go," Bloomquist said. "There comes a point in time where you just miss playing. Nobody that's on the DL likes rehabbing or being on the DL."
Gibson said he will try and find playing time for Bloomquist, which could be a challenge given the presence of Cliff Pennington and Didi Gregorius, not to mention possible September callups when the rosters expand on Sept. 1.
• The D-backs have not decided yet whether or not to go with a six-man rotation in September.
"We haven't had any further discussion about it," manager Kirk Gibson said. "We've talked about it on occasion, but we haven't made that decision yet."
• The D-backs are still finalizing their list of September callups.
"We'll probably end up calling up a couple guys on Sunday and then more on the third [Sept. 3]," general manager Kevin Towers said. "I don't think there's going to be any huge surprises."
• Despite long odds to make the playoffs, Gibson continues to believe his team will make a late push.
A reason for his belief, he said, is how well the team has played in extra-inning games this year and how they've dealt with the adversity those games have provided.
"I think it's been a good sign, how we've handled it," Gibson said. "It's one thing that tells you that somehow, someway we're going to figure something out here and get into it. The team doesn't bellyache about what's not going good at all. They focus on the current task, the task at hand and we've been very good at it."
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.