outdoor man vs sporting man

outdoor man and sporting man both are nouns.

Word	Noun	Adjective	Verb	Adverb
outdoor man	Yes	No	No	No
sporting man	Yes	No	No	No

As nouns, outdoor man and sporting man are synonyms defined as:

outdoor man (noun)	sporting man (noun)
someone who enjoys outdoor activities	someone who enjoys outdoor activities
	someone who leads a merry existence; especially a gambler on the outcome of sporting events