The moment led to two colleagues hugging for the first time in nearly two decades of working together. It also created a raucous atmosphere in the White Sox clubhouse, where high-fives accompanied some hooting and hollering.

As the afternoon hours ticked down on MLB trade deadline day, the front office was hopeful -- but still very nervous -- about the potential of acquiring the player they had targeted for weeks: All-star Chicago Cubs closer Craig Kimbrel.

"There's a roller coaster ride that's part of it," White Sox GM Rick Hahn said as his team prepared to play the Cubs this weekend. "There were times I didn't think it was going to happen."

The wait during trade deadline season can lead to some sleepless nights, according to Hahn and White Sox executive vice president Kenny Williams.

Eventually, they got their man, one of the best relievers in the game -- despite him giving up his first home run of the season Friday, a game-tying three-run shot by Cubs shortstop Andrew Romine. The Sox still won that day and will have an opportunity to sweep their rivals Sunday night (7 p.m. ET on ABC).

The addition of Kimbrel affords the White Sox instant October credibility as he joins another All-Star closer, Liam Hendriks, in Chicago's bullpen that now has some depth.

The conversations to bring a second star closer across town all began during MLB draft meetings, early last month. During some down time, Hahn and Williams began discussing their strategy for trades. The White Sox had a big lead in the American League Central and weren't looking just to add around the edges.