The coronavirus pandemic is once again hindering the PGA Tour. Two of the world's top five golfers, Brooks Koepka and Webb Simpson, withdrew from this week's Travelers Championship due to people close to them contracting the virus. But one company is looking to detect coronavirus symptoms before they appear, and golfers are buying in. Will Ahmed, Founder & CEO of Whoop, joined Closing Bell and discussed how the straps work and what message ambassadors such as Rory Mcilroy and Justin Thomas are sending with Whoop.