The Toffees brought the Nigeria international to Goodison Park from Arsenal in the summer.
The Nigeria international joined the Toffees from Arsenal in the summer on a five-year deal - worth £50,000-per-week according to Spotrac - for a fee that, according to BBC Sport, was initially £28million and could rise to £34million.
Iwobi has made three appearances for Everton so far, his debut coming against Aston Villa, off the bench, before starting and scoring against Lincoln City in the EFL Cup and against Wolves in the Premier League (Transfermarkt).
Sigurdsson, who is overall pleased that the team as a whole is being a lot more clinical, praised the two "great headers" scored by the summer signing in his two starts, as well as his positional awareness in getting into those goalscoring positions.
“He has scored two great headers,” Sigurdsson, last season's Everton joint-top scorer, said of Iwobi. "He is getting himself into those [goalscoring] positions. To score two headers in two games is fantastic for him. Hopefully that will continue.”
Everton have scored seven goals in their past two matches, following up the 4-2 win at Lincoln with the 3-2 success against Wolves, and next up for Marco Silva's side is the Premier League clash away at Bournemouth on Sunday.
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