Austrian Max Zechmann, a former caddie on the European Tour, collapsed on the 13th fairway at Emirates Golf Club and received on-site treatment from the medical team before being taken to hospital where he was later pronounced dead.

The 55-year-old Zechmann is understood to have retired in 2014 and settled in Dubai. Among his former players are Austrian Marcus Brier.

Here, we picked out tweets from stunned friends of Max.