UPDATE: Later Thursday, Bosh clarified that he he did briefly speak to James at Dwyane Wade's wedding on Aug. 30
James announced he was returning to Cleveland in July after spending the last four seasons with Miami, leading the Heat to two NBA titles.
Bosh was asked if he was looking forward to seeing James when the two teams play in Rio de Janeiro on Saturday.
"Yeah ... I don't know," Bosh said, according to ESPN.com. "I'm in the mode where I'm trying to lead my team, help these guys out around here. If guys aren't in this locker room I don't have much time for them -- if any."
After James left Miami for Cleveland, Bosh re-signed with the Heat, inking a five-year, $118 million contract. The first regular season matchup between the two teams is Christmas Day in Miami.
Bosh, who averaged 16.2 points and 6.6 rebounds a game last season, says he wants to focus on his current teammates.
"Everybody's going to hype it up and it's going to be a big deal," Bosh said. "But for us, it's just another opportunity to get better. We know everything that's surrounding the situation and it is what it is."
The Heat open the regular season at home against the Washington Wizards on Oct. 29.
- Scooby Axson