This video comes to us courtesy the year 1989. The footage appears to be from their Scottsdale spring-training facility of that same year.
Among its multiple splendors, one can find in this video:
0:06 — Will Clark (I think, right?) talking about an itch he has.
0:41 — Roger Craig, Patron Saint of Heroic Nonsense, do what comes natural.
0:53 & 1:05 — Kevin Mitchell’s funny body.
Video also courtesy the efforts of YouTube user sfgiants22.