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Torn tendons in both knees won’t stop Josh Sanders from trying to set more world records — and he might even try again in September.

The 2000 Portage High School graduate on Monday reported his physical rehabilitation is well underway after injuries two weeks ago stalled an attempt to break the double Smokies Challenge Adventure Run record.

“It was horrifying. I’ve never felt pain like that,” Sanders said of tearing and scar tissue in iliotibial tendons in both knees. Sanders, to break the double SCAR record, needed to traverse the 70-plus miles long Appalachian Trail — twice — in less than 80 hours.

The tear in his left knee occurred 35 miles in and was a reaggravation of a prior injury, he said. Sanders soldiered on “before the other one went” at about mile 65.

Sanders then climbed, or, “crawled,” 7 miles on two torn tendons, a grueling process that took him about five hours.

“It was the longest and hardest five hours of my life just to get off that mountain,” he said.

Despite this, Sanders was still two hours ahead of the record pace when he finished the single traverse, he said. “That fuels my resolve, that if my body holds up, I can do this.”