The following video is from Monday's MarketFoolery podcast, in which host Chris Hill and analysts Ron Gross and Jason Moser discuss the top business and investing stories of the day.

Shares of Dick's Sporting Goods (DKS 0.30%) tumbled after the retailer reported weaker-than-expected same-store sales and lowered its outlook. Earnings were up 15% and online sales were up 54%. Is the sell-off a buying opportunity for investors? Are UnderArmour (UAA 3.03%) and Amazon.com (AMZN -1.29%) serious threats? In this installment of MarketFoolery, our analysts take stock of the sporting goods landscape.

Amazon may be the king of the retail world right now, but at its sky-high valuation, most investors are worried it's the company's share price that will get knocked down instead of its competitors'. We'll tell you what's driving the company's growth and fill you in on reasons to buy and reasons to sell Amazon in our Motley Fool premium report. Simply click here now to get started.

The relevant video segment can be found between 5:21 and 10:10.

For the full video of today's MarketFoolery, click here.