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Thomas Kaminski was given his marching orders in the 31st minute after two missed-timed challenges on Paddy Lane and Connor Ogilvie in quick succession. 

But Pompey failed to make its man advantage count, with only six of its 15 attempts on target as well as having 66.5 per cent possession.

Rob Edwards' side did have its opportunities, however, missing four big chances, with the best of those falling to Elijah Adebayo, registering an xG of 0.51 from his three shots.

Meanwhile, at the Hawthorns, Leeds United remains winless in its first two games as it was held to a goalless draw against West Bromwich Albion.

Daniel Farke's side suffered an early exit in the Carabao Cup to Middlesbrough last week, and struggled once again in front of goal at the Hawthorns.

Leeds registered just one shot on target from the eight it attempted in the West Midlands, with that effort coming from Ethan Ampadu 10 minutes into the second half.

The Baggies opened their season with a 3-1 win over Queens Park Rangers, with Josh Maja netting a hat-trick, but he proved ineffective this time around, registering an expected goals (xG) of just 0.03 from his one shot on target.

At Pride Park, Kayden Jackson scored the only goal of the early kick-offs as Derby County beat Middlesbrough 1-0 for its first win of the campaign.

Jackson, who arrived from Ipswich Town in the transfer window, pounced on a mistake by Isaiah Jones before rounding Seny Dieng to give the Rams a 14th minute lead.

But Michael Carrick's side's wastefulness in front of goal proved to be their downfall, underperforming its xG by 1.73 with only four of their 20 shots on target.

Middlesbrough has now only scored once in its past four away league games against Derby, with that goal coming in a 2-1 loss back in 2021 under Neil Warnock.