13G Filing: Archon Capital Management and Vericel Corp (VCEL)

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Exhibit A

AGREEMENT

The undersigned agree that this
Schedule 13G dated August 28, 2017 relating to the Common Stock, no par value per share, of Vericel Corporation, shall be filed
on behalf of the undersigned.

Archon Capital Management LLC
By: /s/ Constantinos Christofilis
Name: Constantinos Christofilis
Title: Managing Member
CONSTANTINOS CHRISTOFILIS
/s/ Constantinos Christofilis

Strategos fund, l.p.*

By: Archon Capital Management LLC, its General Partner

By: /s/ Constantinos Christofilis
Name: Constantinos Christofilis
Title: Managing Member

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