Chris Sale is as frustrated as he's ever been on a baseball field as he continues to struggle to begin the season.

Sale suffered his fourth loss of the season on Tuesday night against the New York Yankees, while his ERA stands at 8.50. He had four defeats during the entire 2018 season.

"I just flat-out stink right now," he said. "I don't know what it is. When you're going good, it's good. When you're going bad, it's pretty bad."

Sale is in the midst of what he called the worst stretch of his 10-year career, which has included six consecutive top-5 finishes in AL Cy Young balloting and, coming into the season, a 2.89 ERA, 103-65 record and 1,789 strikeouts in 1,482⅓ innings.

"I've got to find a way to pitch better," the left-hander said. "This is flat-out embarrassing. For my family, for my team, for our fans. This is about as bad as it gets. I have to pitch better. I keep saying the same things, but at the end of the day, you go out there and give up four runs here, five runs here, seven runs here ... if I get into the sixth or seventh inning like I should -- that's who I am.

"I'm supposed to pitch into the sixth, seventh, eighth inning, finish games and stuff like that, save our bullpen, cut it off when we're losing and keep winning streaks going. That's not who I've been."