I didn't know Alan Shearer was a writer on Roman history, Andy (predictive text can cause all sorts of problems).
Players and pundits often combine stock phrases with incorrect grammar- "he's took one for the team ", "he should of went for that- should of been straight red" as well as dubious maths "he give 110% today". On the other hand, some of their stock phrases might be seen as clever metaphors and similes in other fields- for example "parking the bus", " he went down in instalments" or "like a knife through butter" or "he rose like a salmon". They also use words most of us never use in every day conversation "he was adjudged offside".
I love football and I enjoy listening to the commentators, pundits, managers and players so the use of stock phrases doesn't bother me.
Whatever happened to "sick as a parrot" by the way