The former player, IGL, and coach was 26.

Michael “MAiNLiNE” Jaber, a veteran of the Counter-Strike: Global Offensive scene in North America(NA), has reportedly passed away. He was 26 years old at the time. Joel “jcrueL” Cruel, a former teammate on eUnited and Mask Off who is now officially joined to Complexity’s VALORANT lineup, broke the news first.
Since the switch to CS:GO in late 2012, MAiNLiNE has been a regular in the North American Counter-Strike scene. He was a member of the Method, Enemy, Selfless Gaming, and eUnited squads. MAiNLiNE and eUnited won Fragadelphia 10 in January 2017 with his teammate jcrueL. He was also a member of the Selfless Gaming lineup in the first season of ELEAGUE. In 2018, he began teaching, primarily for Ghost Gaming.
I wish I checked up with you more often, Rest In Peace brother @Mainlinecsgo . Those csgo teams and times we spent at lan will always be some of the best memories for me.
— COL jcrueL (@jcrueL_) October 7, 2021
In a series of tweets, MAiNLiNE’s coach at Selfless, former manager/co-owner Steve “Ryu” Rattacasa, described MAiNLiNE as “the most humble, hilarious teammate I’ve ever had the pleasure of competing with.”
.@Mainlinecsgo was the most humble, hilarious teammate I've ever had the pleasure of competing with.
— Ryu (@SelflessRyu) October 7, 2021
I have never laughed harder or more consistently than I did with him on the team. He carried such a contagious enthusiasm and his catch phrases still put a smile on my face.
MAiNLiNE coached or played alongside several NA CS:GO stars, including TSM’s Matthew “Wardell” Yu and Yassine “Subroza” Taoufik, Team Envy’s Pujan “FNS” Mehta, Cloud9 Blue’s Mitch “mitch” Semago, and others.
Many of these players, as well as other figures associated with NA CS:GO, expressed their sympathies and respects in the replies to jcrueL’s tweet.
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