Marcus Ramsay, 35, was stabbed during an altercation in Horninglow Road, Firth Park, in the early hours of August 8.
He was taken to hospital but sadly died as a result of his injuries a short time later.
A 17-year-old, from Sheffield, was arrested on suspicion of murder on Wednesday and brought in to custody for questioning.
Another 17-year-old, who cannot be named for legal reasons, was charged with the murder of Mr Ramsay at the end of August. He is remanded in custody.
A spokesperson for South Yorkshire Police said: “We remain keen to hear from those with mobile phone footage of a street party in Horninglow Road which took place on August 7 in to August 8.”
Anyone with information about the events leading up to Mr Ramsay’s death can upload it via this dedicated online portal.
Footage can also be emailed to [email protected]