Hi. You had Acl before means did you get it treated or not. If not then it might be that your knee is still unstable and you would have subluxated the knee. During the process you might have injured the meniscus or cartilage of the knee or knee cap.
Next Steps
Take rest, ice fomentation, compression and Elevation (RICE). if pain or swelling do not settle show to arthroscopic and sports surgeon near you. Don't self treat or ignore symptoms to avoid future problems
Health Tips
You should not play now till you get this sorted. Regards
Dr Sachin Jain
Arthroscopic surgeon and Sports medicine expert
JAIPUR