Northampton Town v Tranmere Rovers team news
Hackett withdrew from the trip to Plymouth at the last minute with sickness, while O’Toole did travel and was used as a second-half substitute but was well below full fitness.
“John-Joe would have come straight back in if he had been fit and Chris would have played as well,” said Chris Wilder. “They were disappointing losses and it was a psychological blow to lose Marc Richards too.”
Joel Byrom misses out as he completes his two-game suspension this weekend, while Northampton will also be without Kaid Mohamed, Marc Richards, Ben Tozer and Ian Morris through injury.