The 29-year-old has been bailed pending further inquiries into the incident in Manchester on Sunday, PA quoted sources as saying.
Two hours after the alleged attack, the player was involved in a car crash and charged with drink-driving, driving while disqualified and having no insurance.
Pennant is due to appear at Trafford Magistrates’ Court on May 9 to answer the driving charges.
Mumbai Roundup: 9 incidents that took place this week
Photos: Ajay Devgn, Parineeti, Tabu at 'Golmaal Again' trailer launch
Photos: Dipika Pallikal Karthik oozes oomph in bikinis and sarees
Photos: Kareena Kapoor Khan's grand birthday bash
Photos: 'Dangal' girls Sanya Malhotra, Fatima Sana Shaikh's dinner outing