SAN DIEGO -- Jedd Gyorko was pretty excited on Wednesday when he was finally able to pull off the cast and protective boot on his right foot.
That enthusiasm didn't last long, though.
"About 12 hours," Gyorko said Thursday.
Tests on Gyorko's right foot -- he's on the disabled list with plantar fasciitis -- showed not enough improvement to keep the cast and boot off.
"It's not a great sign," said Padres manager Bud Black.
On Thursday, the cast and protective boot went back on.
"It's similar to the first time. We're planning on waiting a week and then we'll look at it again," Gyorko said. "Until then, we're in a waiting pattern again."
The Padres placed the second baseman on the disabled list on June 6, retroactive to June 4. In terms of calling this a setback, Gyorko wasn't so sure -- mostly because there's no timetable, even a provisional one, that he or the Padres medical staff are using as a guide.
"It's so tricky and it varies," Gyorko said. "Each case is different. Knowing how long would make things a little easier."
Gyorko said surgery isn't an option at this point because tests have shown there's no tear in the foot. All he can do at this point it rest the foot and wait.
"I'm almost certain I'll play again [this season]," Gyorko said. "I'll be back at some point."
Goebbert recalled to replace Alonso on roster
SAN DIEGO -- With first baseman Yonder Alonso landing on the disabled list on Thursday, the Padres selected outfielder/first baseman Jake Goebbert from Triple-A El Paso to take Alonso's spot in the 25-man roster.
Goebbert, 26, was acquired from the A's in May for Kyle Blanks. Goebbert was hitting .270 with El Paso in 111 at-bats with five home runs and 18 RBIs. In June, he was hitting .321 with a .446 on-base percentage.
Overall, Goebbert was hitting .264 with 11 home runs and 43 RBIs, which includes his time with the A's Triple-A affiliate in Sacramento.
The Padres will likely use Goebbert, a left-handed hitter, in a platoon with Tommy Medica at first base. Medica had the game-winning hit in Wednesday's 2-1 victory over the Mariners and was in the starting lineup on Thursday.
"We're going to try and get him in there and see if he could do a few things," said Padres manager Bud Black. "[Maybe] get some base hits and help us. He might play as early as this weekend. We'll try to get him acclimated as quickly as possible."
Goebbert was scheduled to start at first base for El Paso on Wednesday in Des Moines, but was scratched. He then flew to San Diego on Thursday.
"I'm grateful for the opportunities I've been given," Goebbert said. "Whenever you're traded it means someone else is looking for you and it puts you on another list, and that's always a great thing. I feel like I'm floating. It's a great experience for me. Something I'll never forget."
Alonso officially placed on disabled list
SAN DIEGO -- First baseman Yonder Alonso was placed on the disabled list on Thursday with right hand tendinitis after missing the last two games for San Diego.
Alonso was limited to 334 at-bats in 2013 after a right hand contusion in June sent him to the disabled list. He missed six weeks with the injury before returning in July. Alonso then essentially sat the entire month of September, not getting a single at-bat.
San Diego manager Bud Black said Thursday that this injury is unrelated. And, Black said, there is some reason for encouragement.
"It's a pretty strong case of tendinitis," Black said. "[But] from talking to our hand doctor, Dr. [Lorenzo] Pacelli, he thinks this can turn around very quickly. Hopefully the medicine will take effect quickly."
Alonso is hitting .210 with five home runs, 15 doubles and 22 RBIs in 229 at-bats this season. Prior to Tuesday, he had appeared in every game for San Diego since April 30.
"I think it's cumulative -- this wasn't a one-swing event," Black said. "Some days were better than others. A day off here and there sort of helped him. Overall, it got to the point the last week or so that he just couldn't move the bat through the zone at the end of his swing."
The Padres are expected to split time between right-handed Tommy Medica and newly called-up Jake Goebbert, a lefty who'll be making his Major League debut when he appears in a game.
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. Will Laws is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.