Former title challenger Santos defeated Walker via unanimous decision in the main event on Saturday, which took place at the UFC Apex in Las Vegas. The card streamed on ESPN+.
After their five-round battle, Santos will need doctor clearance on his left ring finger, left foot, left knee, and an X-ray on his left ribs before he can resume competition. Meanwhile, Walker needs an X-ray on his left foot before getting cleared.
Also potentially sidelined for 180 days is Niko Price, who needs an X-ray on his left knee after defeating Alex Oliveira; Krzysztof Jotko, who needs an X-ray on his left foot after edging out Misha Cirkunov; Devonte Smith, who needs his right orbital fracture cleared by a doctor after his knockout loss to Jamie Mullarkey, and Johnny Eduardo, who also needs his right orbital fracture cleared after his submission loss to Alejandro Perez.
The full list of UFC Fight Night 193 medical suspensions can be seen below: