Derek McInnes has been quick to point out Aberdeen's punishing early season schedule as a reason for their lack of goals so far this term.

Goalless draws with St Johnstone and Hearts have come off the back of a frustrating tie against Maribor, where a lack of ruthlessness in front of goal cost them progress.

Goalscoring options seemed to be highest on McInnes' shopping list this summer, bringing in Jayden Stockley, Wes Burns and Miles Storey to provide service and competition to Adam Rooney. Peter Pawlett and Niall McGinn offer alternative attacking options, even with Jonny Hayes out injured.

While the Dons have managed 22 shots in their opening Premiership games (only three teams have managed more), they've only managed eight on target.

It's always a little disingenuous to roll runs of results across two seasons, but it will be of some concern to McInnes that Aberdeen haven't scored in 386 minutes of Premiership football, by far their longest dry spell since the league rebranded.

There were eyebrows raised when Celtic spent a significant sum on recruiting Scott Sinclair.

The 27-year-old has had something of a fitful career in recent years, enjoying a very fruitful time at Swansea, only to be followed by indifference at Manchester City, West Brom and ultimately relegation with Aston Villa.

In two seasons at Swansea, Sinclair played every league game, scoring 30 goals and providing seven assists. In the four years since that he's managed just four goals and a single assist. He was clearly in as much need of a move as Celtic were for a player with his direct dribbling abilities.

And Celtic certainly were in need of more pace and invention. Under Ronny Deila there were few options for stretching the play, with James Forrest and Gary Mackay-Steven out of form, and Kris Commons lacking the pace to open play, most of the danger from wide areas was provided by the full-backs.

Brendan Rodgers has immediately sought to remedy this, with Forrest in particular looking rejuvenated. Sinclair looks to have been a shrewd acquisition.

There's no such thing as a one-man team, but there are certainly players that are harder to replace than others. Birmingham City's acquisition of Greg Stewart has raised just such a conundrum for Dundee.

As we touched on last week, no Premiership side has been so reliant on the goals or assists of a single player in the way that Dundee have been with the 26-year-old.

Over 40% of the goals Paul Hartley's side have scored in the Premiership were scored or assisted by Stewart.

Furthermore, seven of his 25 Premiership goals for Dundee are what we've classified as "unassisted" - goals he's created himself. These are particularly hard to replace, as they're often free-kicks, mazy runs or shots from distance.