It could have been much worse, though, according to Comic Book Movie, who gathered a handful of Alexander's Tweets on the matter:
- "Today I sustained a pretty horrible injury. I'm lucky I'm not paralyzed. Thank you (with all of my heart) to those who've looked after me."
- Already in recovery mode and my spirits are high. I'll be back kicking ass as Lady Sif in no time! It can only get better from here on out!
- Feeling better today! Speedy recovery taking place! Off to see another specialist. A smile on my face :) Thank you for all the love! XO
- Received great news today! Meds are kicking in. Awesome funny nurses here at the hospital. Physio tomorrow. All good. #HappySif #Thankful
More details, as they're made available, will likely go public via her Twitter account.
This is the second on-set injury to a Marvel Studios performer in less than three months; Robert Downey, Jr. injured his ankle on the set of Iron Man 3 back in August and filming had to shut down briefly while he recovered.