Broken Rear Wheel Spoke

Hey Folks,

I have 850 miles on my road bike. Cleaning the chain today I noticed _'One'_ broken spoke on the rear wheel. The bike is a GMC Denali (please don't rag on me I'm trying to get back into road riding), it is a large frame, 7sp FW, 700c-32 tires. I am large 240lb, 6'2" and ride 15.5...