Rajon Rondo thinks the the first round series between the Chicago Bulls and Boston Celtics would have ended in a four-game Chicago sweep had he not been sidelined with an injury.

Rondo led the Bulls charge out of the gates to take a 2-0 series lead, however a fractured thumb required him to sit the final four games of the series that resulted in the Celtics taking the series 4-2.

"Honestly, yeah," Rondo said on "Inside the NBA" via the Chicago Tribune when asked if he thought Chicago would've swept the top-seeded Celtics.

Rondo averaged 11.5 points, 10 assists, 8.5 rebounds and 3.5 steals in the opening games against the Celtics, bringing new life to the "playoff Rondo" Celtics fans once grew accustomed to during his days in Boston. He said the chemistry of the team, which was one of the biggest question marks for the Bulls all season, was a huge part of why he felt they could've swept in round 1.

"It was very frustrating, especially the way we were clicking at the time," Rondo continued. "We had a good chemistry going and I thought we were some making great adjustments in Games 1 and 2."

With Rondo out of the lineup and on the bench, backup point guard Isaiah Canaan stepped into a larger role quarterbacking the offense. But the chemistry and momentum in the first two games was never the same after Rondo went down, and ultimately cost them a shot at a first round series upset.