What happened: Wayne Frederick, Youssef Maziz and Darren Yapi entered in the 46th minute. Josh Atencio, Hamzat Ojediran and Dante Sealy came off.
Why it matters: Colorado's three-match winning streak was at risk. San Diego had a chance to narrow the Western Conference gap between the clubs.
By the numbers: Colorado entered 9-10-1 with 28 points, four ahead of 6-8-6 San Diego.
What to watch: The reshaped attack must produce quickly to give Colorado a route back into the match.