When Gabriel Jesus was sidelined by injury, doubts were raised about Arsenal's depth and whether they could continue to set the pace at the top of the Premier League.
But in homegrown product Eddie Nketiah they have saved themselves millions in the transfer market.
Fellow youth team prodigy Bukayo Saka grabs most of the headlines and scored a beautiful goal against Manchester United on Sunday but Nketiah's double sealed the 3-2 win.
It took Nketiah a while to establish himself at Arsenal having made his debut in 2017 and he was loaned out to Leeds United at one stage. But after Jesus's injury, he has seized his chance with both hands and he now has seven goals from his last seven games in all competitions.
Newcastle stretched their unbeaten Premier League run to a club record 15 and kept a sixth successive clean sheet but the 0-0 draw at Crystal Palace exposed their misfiring attack.
Eddie Howe's side are devilishly difficult to beat but they have now scored only once in four league games and their top-four ambitions could be damaged by a lack of goals.
The decision to loan out striker Chris Wood was surprising especially with no forward coming in and Howe will be pushing for offensive reinforcements before the transfer window shuts.
Joelinton was disappointing at Palace while Callum Wilson is without a goal since October and looks short of confidence.
There was not much to get excited about in Chelsea's 0-0 draw at Liverpool but the second-half introduction of new signing Mykhaylo Mudryk did lift the tedium.
The Ukrainian winger, who looked destined for Arsenal before choosing Chelsea, showed some dazzling footwork during his brief cameo and looked the most likely player in Chelsea's ranks to snatch a winner at Anfield.
Manager Graham Potter was impressed by 22-year-old Mudryk's impact while Sky Sports pundit Gary Neville raved: "Seeing Mudryk for 10 mins I wouldn't like to play against him!"
Everton have had a number of must-win games since the resumption of the Premier League season following the World Cup and lost them all. Next up is Arsenal and Liverpool.
They had home games against Wolverhampton Wanderers and Southampton when both clubs were bottom of the league, and lost both 2-1. This weekend’s visit to fellow strugglers West Ham was at the very least a "must not lose" fixture, but they were comfortably beaten.
The Toffees’ 15 points from their first 20 games of the season is the worst return in the club’s history and it is hard to see where the next victory is coming from for Frank Lampard’s side.
He has tried to change systems, going to five at the back, but it has not yet made any difference to results. New arrivals this week could change the outlook for the team, but will they be enough to stave off relegation?