A woman who worked as a live-in chef for Stefon Diggs and is accusing the former New England Patriots wide receiver of assault is expected to continue her testimony Tuesday at his trial, marked the first day by sharply conflicting accounts of what happened inside his home.

Jamila Adams , who goes by “Mila,” testified Monday that Diggs slapped her and choked her during a dispute in December, leaving her struggling to breathe. Diggs’ attorney told jurors the attack never happened.

Adams told jurors that Diggs “smacked me with an open hand” before wrapping his arm around her neck. She described what she called a “complicated” employment dynamic, saying their relationship had previously been sexual, although not at the time of the alleged assault.…