Two men have been arrested on suspicion of attempting to pervert the course of justice in relation to the Yousef Makki trial.
The 17-year-old who was from Burnage, south Manchester, died in Gorse Bank road in Hale Barns after he was knifed in the heart by his friend on March 2.
Boy A, 17, and another boy, 17, boy B, both from wealthy Cheshire families, were cleared of all charges following a four-week trial at Manchester Crown Court in July.
Greater Manchester Police have now confirmed that two men - aged 18 and 22 - have been arrested on suspicion of attempting to pervert the course of justice in relation to the trial proceedings.
Both have been released under investigation.
A spokesperson for Greater Manchester Police said:
In a tribute, Yousef's family said:
Last week, his family said they were in the process of appealing the two boy's 'unduly lenient' sentences and had wrote to the Attorney General Geoffrey Cox to refer the sentences to the Court of Appeal.