The throws were his first on the practice field in a week .
49ERS : Colin Kaepernick threw dozens of passes on the side during a joint practice with the Broncos , signaling the quarterback 's return from a sore passing shoulder .
The throws were Colin Kaepernick 's first on the practice field in a week .
49ERS : Colin Kaepernick threw dozens of passes on the side during a joint practice with the Broncos , signaling the quarterback 's return from a sore passing shoulder .