PEORIA, Ariz. -- Greg Maddux is coming back to the Padres -- as an instructor for Spring Training.

San Diego manager Bud Black said Monday that Maddux, who retired in December after winning 355 games during a 23-year career, would join the staff on Wednesday.

Black said the Chicago Cubs, a team Maddux pitched twice for in his career, also offered a similar deal to the 42-year-old, but he chose the Padres.

"A lot of my conversations with Greg [last season] were about the future ... and what he wanted to do beyond baseball. [General manager] Kevin [Towers] and I approached him with the idea to come into camp as an additional staff member to learn about life on the other side. He was excited about the possibility."

Black said Maddux's role is largely "undefined," though he'll work with players, as well as possibly shadow Towers and his staff in the first of what is expected to be three trips, each lasting about a week.

"I can sort of relate it to when I retired in 1995, I went to camp with Cleveland [in 1996] I went to camp and just observed," Black said. "... I was part of Spring Training on the coaching side, then I picked the brains of [front-office types] Dan O'Dowd, John Hart and Mark Shapiro."

Maddux announced his retirement in Las Vegas in December at the Winter Meetings. He spent last season with the Padres, going 6-9 with a 3.99 ERA before the team traded him to the Dodgers in August for two Minor League players.

Maddux went 2-4 with a 5.09 ERA in seven starts with the Dodgers following the trade.

"It gives me, the coaches, even Kevin, a new perspective of a recently retired player. A guy of Maddux's resume ... he's a great resource," Black said.

Black said he was looking forward to having Maddux back, if for no other reason than that he hopes some of his work ethic rubs off on the players in camp.

"His strongest asset was his consistency," Black said. "[Hopefully] he can impart that to the players ... the consistency, both physically and mentally, the little things. He was a great practice player. He took his bullpens serious, took his fielding drills serious, bunting, hitting, all that. Hopefully players who were around him saw that."