Chick-fil-A and Popeye's are about to get some new, crispy competition.

Fast-food restaurant chain McDonald's is expected to launch a crispy chicken sandwich in the beginning of next year and Telsey Advisory Group said its going to be a "big U.S. hit for the chain."

"We believe MCD's new Crispy Chicken Sandwich and Biscuit will usher in a successful new U.S. lineup of better-quality chicken in 2020 and 2021," said Bob Derrington, managing director and senior research analyst at the Telsey Advisory Group, in a note to clients on Thursday.

The U.S. chicken marketplace has grown more than 14% this year to about $4.5 million sales per store, according to the firm. Chick-fil-A, Popeye's and Wendy's have achieved great success from the popularity of their chicken sandwiches. The so-called chicken wars have put pressure on McDonald's to find a competitive chicken option for the fast-food chain.

"We believe MCD's new Crispy Chicken product is almost 'ready for primetime' and successfully face-off against its major nemesis Chick-fil-A," said Derrington, who tried a trial of the sandwich last week in Tennessee. "MCD's New Crispy Chicken Sandwich Tastes Really Good!" he added.