This compound subject, therefore, requires a singular verb to agree with it. SUBJECT-VERB RULE #2 Two or more SINGULAR subjects joined by or (or nor) act as a singular compound subject and, therefore, take a singular verb to agree.
For example, You can't help but see how he feels about her; he wears his heart on his sleeve. Shakespeare had it in Othello (1:1): But I will wear my heart upon my sleeve for daws to peck at. People who wear their heart on their sleeve express their emotions freely and openly, for all to see.
Answer Wiki. The purpose of a compression sleeve is to speed up recovery by improving blood flow a given area as well as improve performance. A less intended purpose is that it helps protect against stress related injuries at least when we're talking about the lower leg, specifically shin splints and stress fractures.