John Mousinho appeared set for successive home wins following Colby Bishop’s volley, until a long throw was netted by Thomas in the 89th minute.
In a tight match, in which the Blues used both deadline-day signing, there were a number of good performances – and here are our on-the-whistle player ratings...
17. Portsmouth Head Coach John Mousinho during the EFL Sky Bet League 1 match between Portsmouth and Barnsley at Fratton Park, Portsmouth, England on 4 February 2023.
Pompey head coach John Mousinho conducts things from the touchline during the visit of Barnsley to Fratton Park. Picture: Jason Brown/ProSportsImages Photo: Jason Brown