LaFromboise, who was claimed off waivers from the Mariners on April 2, flew from Seattle to Cleveland on Tuesday, arriving about 8:30 p.m. ET. He watched the Padres' 8-6 loss to the Indians from the team's hotel.
"This is awesome," LaFromboise said Wednesday morning. "I never expected [to be recalled] this quick. It goes to show you never know how quick it's going to happen."
LaFromboise, 27, will return to San Diego after Wednesday's game and then likely rejoin El Paso.
San Diego manager Bud Black met LaFromboise for the first time on Wednesday, not having ever seen him pitch before. The reports from the team's scouts, however, were favorable.
"He has a low, three-quarters fastball with a change and has worked his way to the big leagues," Black said of LaFromboise, who made his big league debut with the Mariners last season.
"Bobby has made marked improvement the last couple of years, according to our scouts. He has some weapons."
LaFromboise's head has been spinning since the Padres claimed him.
"I've been with the Mariners for six years, so it's the only thing I ever knew," he said. "I didn't know what to do when I wasn't on a roster. Once the Padres claimed me, it was quick process. I was over there [in Arizona] for a day and then flew out with the team."
LaFromboise had a 6.75 ERA in two games and 1 1/3 innings.
He came to the Padres with a reputation as having a funky delivery.
What's so funky about it?
"People describe as body limbs going everywhere," he said, smiling.