TMZ Sports has obtained footage of Kelly Oubre Jr. just minutes after he was struck by a vehicle over the weekend ... showing the Philadelphia 76ers forward struggling to walk as he entered his apartment.

As we previously reported, the 6'7" hooper was involved in a hit-and-run outside his Philly residence on Saturday ... suffering a broken rib and injuries to his hip and leg after a silver car swiped him with a side-view mirror.

Sources tell us Oubre returned home shortly after being hit ... and when his wife saw him in serious pain, she called 911.

In the Ring camera footage, Oubre is heard telling Shylynn he was hit by a car as he rolled a bicycle into his residence.

We're told the 27-year-old was taken by ambulance to a nearby hospital ... where medical professionals began treatment.

Our sources say a couple hours after the incident, officials interviewed Oubre to get some information on what went down.

At the time, Oubre claimed the incident happened near 15th and Spruce Street .... but on Wednesday, police said there was no surveillance video to support his claim.

Sources tell us two factors play into this -- one being Oubre was medicated and not in the right state of mind when he spoke with cops ... the other being he's fresh to the area, as he just moved to Philly in September and doesn't know his way around town just yet.

All that considered, our sources say it was challenging for Oubre to pinpoint the exact location of the accident ... so he tried his best.

There's no official timetable on Oubre's recovery ... although some reports claim he could be back in action as early as the end of the month.