Alex Karev did not beat up DeLuca. This incident never occurred in the television show Grey's Anatomy.
It's possible you're thinking of a different event, or there may be a misunderstanding.
Here are some possible scenarios:
- Alex and DeLuca's Relationship: Alex and DeLuca had a tense and competitive relationship, often clashing over patients and surgical techniques. However, they never engaged in physical violence.
- Alex's Aggressive Behavior: Alex had a history of anger management issues, which sometimes led to outbursts and confrontations with colleagues. However, he never physically assaulted anyone in the show.
- Misinterpretation of Events: It's possible you may have misinterpreted a scene or dialogue, leading to the belief that Alex beat up DeLuca.
It's important to rely on confirmed information from official sources when discussing events within a fictional series.