The Cubs will not tender Rondon a contract for 2018, Jesse Rogers of ESPNChicago.com reports.

Rondon will become a free agent after the Cubs declined to pay him around $6 million for the upcoming season. During the 2017 campaign, the right-hander appeared in 61 games out of the Cubs bullpen, and posted a 4.24 ERA and 1.22 WHIP, with a 69:20 K:BB over 57.1 innings.