The fledgling England international has scored nine times in 12 matches for Frank Lampard’s team and is joint-level in the English Premier League’s scoring charts with Sergio Aguero.
Abraham scored his first Champions League goal in the 2-1 win over Lille earlier this month, but last season’s Champions League semi-finalists Ajax should provide stiffer opposition.
One-club man Veltman told Dutch online portal NU: “There will be no underestimation. Chelsea remain Chelsea.
“They certainly have some good players. I mainly looked at their striker, the 22-year-old Tammy Abraham. He has been loaned out a few times, but is now doing very well.