Starbucks got some heated competition Monday as China's largest coffee chain Luckin Coffee opened its first two locations in the United States.

Luckin Coffee, the fast-growing chain that beat Starbucks at its own game in China, is entering the United States.

Luckin Coffee, the largest coffee chain in China, has opened a pair of locations in New York. And that could put an added emphasis on Starbucks’ ongoing turnaround plans, as Luc