Though they never have faced each other, Paul Konerko knows the book on former teammate Mark Buehrle is wide open and anything is possible.

The veteran first baseman believes the pitcher --- an 11-year veteran of the South Side before he left via free agency before last season --- will bring his unique brand of humor to their first-ever showdown Monday night at the Rogers Centre when the White Sox open a four-game series at the Toronto Blue Jays.

And when he says he expects anything, Konerko truly means just that.

“You got to be ready,” Konerko said. “He might throw an eephus pitch or something like that. He’s not afraid to screw around out there.”

Under manager Robin Ventura’s edict, White Sox players have made a habit of not looking ahead. They have done a good job of staying in line with the one-day-at-a-time mantra preached by Ventura’s staff.

But in special cases -- like one where a White Sox hero whose credentials include a World Series ring, a perfect game and a no-hitter is on the mound -- even Ventura can’t help but look ahead.

“A lot of guys know him,” Ventura said. “You respect what he’s done and what he meant to this organization. But you definitely want to win the game.”

A 38th-round pick of the White Sox in 1998, Buehrle’s 161 wins are the fifth-most in franchise history. He’s now in his second season away from the club after he was allowed to depart via free agency after 2011 and signed a four-year, $58-million deal with the Miami Marlins. The left-hander went 13-13 with a 3.74 ERA last season but was dealt to the Blue Jays this offseason after Marlins owner Jeffrey Loria slashed payroll by $73 million.

One of five Miami players traded to the Blue Jays in November in an infamous 12-player exchange, Buerhle has a 10.24 ERA in his first two starts. Although he expects the meeting to be strange, Buehrle told on Sunday he’s all about task at hand.