Credit: ABC Family Twitter

Mona Vanderwaal (Janel Parrish) isn’t Rosewood’s favorite resident, but the Pretty Little Liars character usually avoids getting all-out attacked. Apparently, her luck has run out in Season 5. Check out the photo evidence!

“Ouch! Things are getting catty on the #PLL set! (via @JMeilanixo),” the official PLL Twitter handle tweeted yesterday, along with a photo of Janel with a cut on her cheek. Could this be another attack from Spencer, who rugby-tackled Mona to the ground in the wake of Season 3 Toby/“A” Team drama — or is the attacker someone else? Who has it out for the former “A” this time?

To be honest, Mona has no shortage of enemies in Rosewood. This is a girl who blackmailed and spied on her neighbors and classmates for years. Sure, the Liars got the brunt of her emotional manipulation, but we’re guessing there were a fair few others caught in her crosshairs.

If we had to guess, we’d put our money on Ali (Sasha Pieterse). In the Season 4 finale, it was revealed that Mona was the one who tricked Ali into faking her own death in the wake of her attack on her life. It is heavily implied that Mona did this to get back at Ali for bullying her all of those years. We’re not saying it was a terrible plan, but it did take away years of Ali’s life in Rosewood. It’s also implied that Mona may have been Ali’s “A.” With Alison set to return to Rosewood in Season 5, these two will most likely have a chance to rehash everything that went down before Ali’s disappearance. Frankly, both has reason to hate the other, so we’re guessing a conversation between the two teenage bullies could escalate quickly. Fisticuffs may ensue.

Who do you think attacked Mona? Share your theories in the comments below!

Catch the Pretty Little Liars Season 5 premiere on Tuesday, June 10 at 8 p.m. ET on ABC Family.

Kayti Burt is a contributing writer for Wetpaint Entertainment with a penchant for all things pop culture. Follow her on Twitter and Google+!