Newcastle face Blackburn Rovers this weekend as they look to make it 10 wins from 10 games in the Championship.
Swansea City host Crystal Palace at the Liberty Stadium this weekend.
The forward could miss Celtic's clash with Aberdeen on Sunday.
The Newcastle United striker scored twice to lead his side to victory at Elland Road last weekend.
Keown believes the absence of a key man will be fatal for Spurs at Stamford Bridge.
Leicester City host Middlesbrough at the King Power Stadium this weekend.
The Gunners' Spanish midfielder has been absent with an Achilles injury for over a month
There has been just one Championship start so far this season for Hanley, a stat which proves how strong this Newcastle side is.
The Gunners entertain Eddie Howe's Bournemouth in the Premier League on Sunday.
Tottenham Hotspur were knocked out of the Champions League on Tuesday evening.