This isn’t true, at least in any definitive sense. I posted the info in the last thread this came up in but a lot of the ‘reports’ about Lions accomplishing this stuff was based off of bullshit and embellishement. There are many scientists, Zoologists and so on that disregard a lot of the stuff said about it. Here’s a quick look at the wiki about it, I’ve posted other sourced articles in the past too but don’t have them handy atm..
https://en.m.wikipedia.org/wiki/Tiger_versus_lion
^It gives back and forth details about many encounters over the years with Tigers winning some and Lions winning others. Most sources I’ve read however say that Tigers typically win out. Beatty is one of the only ones I’ve read that says different and his claims are sketchy. The wiki article gives some examples including one in 2011 where a Tiger easily killed a Lion. Some of the sketchier claims were based on groups of Lions being around a lone Tiger or full grown males being around adolescent Tigers
@Zookeeper Gabe has weighed in on this too iirc and doesn’t seem to think Lions wouldnt do well against a Tiger, but I’ll let him cover that.