The Scout is selecting four overlooked players who could be set for a breakout Gameweek 31 in Fantasy Premier League.
Arnautovic has featured as a substitute in four of the last five Gameweeks.
But he is pushing for a return to the starting line-up after the Hammers lost 2-0 at Cardiff City last weekend.
Arnautovic's underlying statistics highlight his importance to Manuel Pellegrini's attack.
He has scored a goal every 205.1 minutes this season, quicker than any team-mate.
And his 32 shots inside the penalty area and 24 shots on target are both team-leading figures.
Huddersfield, meanwhile, arrive at London Stadium with a poor away record.
The Terriers have secured only one clean sheet and a single point in their last eight road trips.
For managers playing their Free Hit chip and seeking out a short-term punt, Arnautovic could be a good option.