More than 813,000 managers have bought the Norwich City striker ahead of Friday’s 19:00 BST deadline.
Pukki has started the season superbly and is the joint-top scorer in the Premier League alongside Raheem Sterling (£12.2m) with four goals.
The in-form Finn scored a hat-trick at home against Newcastle United last weekend and will be confident of breaching Chelsea's defence at Carrow Road.
The Blues have yet to record a shutout this term and were beaten 4-0 at Manchester United in Gameweek 1.
Rashford produced two goals and 13 FPL points in Man Utd's season opener against Chelsea.
Meanwhile, Martial has profited from a role up front for Ole Gunnar Solskjaer's side, scoring in both opening fixtures.
Pierre-Emerick Aubameyang (£11.0m) has been among the top three captains in each of the first two Gameweeks.
Liverpool have failed to keep a clean sheet in their first two matches and will again be without the injured Alisson (£5.9m).
That boosts Aubameyang’s chances of finding the net for the third consecutive Gameweek.