The incident occurred when Swans midfielder Ben McGlynn brought the ball out of their defensive 50m and found co-captain Jarrad McVeigh, who spotted Tippett wide open in the forward line.
McVeigh's long bomb was perfectly weighted and Tippett took the mark, but a charging Shaw tried to force a contest and ended up getting smashed flush on the jaw by the forward's raised knee.
Shaw didn't move after the unfortunate hit and was taken from the ground on a medicab after an awful collision.
Nathan Wilson was activated as the sub for the visiting Giants, who were trying to back-up their shock round-one victory over the Swans at Spotless Stadium.
The game stopped as Shaw was cared for, with Tippett composing himself before converting the goal.
.@heathshaw23 smiling again and heading home tonight. Just hopes his housemates haven't eaten all the BBQ Shapes pic.twitter.com/X2wXjrvhPX
— GWS GIANTS (@GWS_Giants) June 28, 2014