Cameron Diaz deliberately avoided Jessica Biel at the CNN Heroes: An All-Star Tribute, femalefirst.co.uk reports.

The actress rushed through the back entrance of Los Angeles’ Kodak Theatre on Friday to avoid running into Biel who is dating Diaz’s ex-boyfriend, singer Justin Timberlake.

“It was a careful tango to make sure they weren’t backstage at the same time,” a source said.

Biel, who was accompanied by her father Jonathan, presented one of the prizes at the ceremony, which recognizes people who have shown bravery and dedication in the face of adversity.

Diaz reportedly blew up at Biel at the 2007 Golden Globe Awards after she spotted her flirting with Timberlake soon after they had split.