Fifty - year - old former referee Harif Hassan Osman held the LionsXII boss in equally high regard .
Fifty - year - old former referee Harif Hassan Osman watched on the sidelines as Sundram put his charges through the paces .
Fifty - year - old former referee Harif Hassan Osman , who watched on the sidelines as Sundram put his charges through the paces , held the LionsXII boss in equally high regard .