Try to follow along if you can. The assertion was made that "a real running back would still play with turf toe." That is an assertion that is straight forward and simple. Hence, if one believes the above, then one would also, likely and logically, think Lambert wasn't a "real LB" since he retired from the same injury. If you apply basic logic, you will "get it."
Here are the facts on the injury. Please feel free to learn. Thank you.
What you are saying here is that the irony of the statement completely escaped you.