Derby County may not be done in the summer transfer market just yet. After making the step up from League One, Paul Warne has been working hard to strengthen his squad for the 2024/25 Championship season. Derby County have made eight first-team signings so far in the current transfer window. Several of the Rams’ new additions have made their debuts in the last week, including Kayden Jackson, who scored as Derby beat Chesterfield 2-1 in the League Cup first round. While he is yet to make the switch to Pride Park, meanwhile, Jacob Widell Zetterstrom will join Derby this week after playing his fi…