his new film, “Challengers,” co-starring Zendaya and “West Side Story” star Mike Faist, he’s showing a whole new side of himself.O’Connor plays tennis pro Patrick, one-third of a love triangle with Tashi (Zendaya), a tennis pro poised for greatness before an injury relegates her to coaching, and Art (Faist), another well-to-do tennis pro. Tashi eventually marries Art, and Patrick comes back into their lives years later, kicking off tensions and connections, including a racy threesome.Reviews have described “Challengers” as sexy and steamy, something O’Connor is still surprised he was chosen for.“If you were making the movie, you wouldn’t cast me,” O’Connor recalled telling screenwriter Justin Kuritzkes in an interview for The Wall Street Journal.