Specific Remove sun glare please

[Sport_ie]

I’m trying to brighten this photo but a glared line goes right across the photo. Is it possible to brighten this photo and remove the ring?

Thank you !!!!!

 

[JazzyScotsman]

I did the best I could. Hope it's what you needed.

 

[JJLAPIN]

My Try.

 

[polarwoc]

Needs further effort. Will work based on suggestions/interest from OP.