article_snippet.sent: Keys' made four straight errors in the final game to give Angelique Kerber the match.
article_snippet.sent: Keys', seeded seventh, entered the final on a strong run.
article_snippet.sent: Keys' had dominated four opponents in reaching Keys' first clay-court final.
article_snippet.sent: But Angelique Kerber was just as relentless at keeping the ball in play and counting on Keys' aggressiveness to lead to mistakes on the slow surface.
article_snippet.sent: Keys' finished with 57 unforced errors, nearly three times as many as Angelique Kerber's 21.
article_snippet.sent: Keys' gets tangled up on the court before going on to lose a tight three-set final .
article_snippet.sent: Keys' found Keys' footing in the second set to tie the match.
article_snippet.sent: That continued into the third set and Keys' built a 4-1 lead.
article_snippet.sent: Keys' consistently hit serves topping 100 mph.
article_snippet.sent: Keys' consistency, though, didn't match Angelique Kerber's.
article_snippet.sent: Keys' made only 66 percent of Keys' first serves while Angelique Kerber proved steady at 83 percent.
article_snippet.sent: Keys' outlasted the German in three sets to win Keys' only WTA title, at Eastbourne last June.
article_snippet.sent: Keys' shows Keys' frustrations after hitting a bad shot in the final on Sunday .