Sports massage from a qualified therapist - never.
Deep tissue massage from a qualified therapist - several times. It's what I typically look for and it's an easier transition between tissue stimulation to sensual.
As Bigboi suggests you might find someone who is qualified on Gumtree but they will tend to offer a wider range of services so I wouldn't be so confident of their abilities as a sports massage therapist. The ones who have specialised in sports massage are unlikely to put out IMO.
I'd certainly be interested to learn if someone has had it, but I can bet the therapist would not want it widely advertised.