The Sigma 70-200mm f/2.8 DG OS HSM Sports lens has rumored for a long time, according to recently rumors on CR, the upcoming Sigma 70-200mm f/2.8 DG OS HSM Sports lens will be announced in early 2018, likely at CP+ Show in February. Sigma may also announced a 70-200mm f/4 DG OS HSM Contemporary lens along with sports version.
via: CR