Portsmouth boss Avram Grant claimed a united team display was behind Saturday's 2-0 win over Liverpool at Fratton Park.
Goals from Algerian defender Nadir Belhadj and French striker Frederic Piquionne condemned the Reds to seventh league defeat of the season.
Pompey's fourth win of the campaign failed to lift them off the foot of the table, but they did draw level with fellow strugglers West Ham United on the 14-point mark.
"Today we played like a team," said Grant, who replaced Paul Hart in the hot-seat last month.
"From game to game we are playing better and today we deserved the win."
The home side took the lead in the 33rd minute when Kevin-Prince Boateng's driven low shot was palmed away by Pepe Reina and Belhadj picked up the pieces.
The lead was doubled eight minutes from time and after Liverpool had lost Javier Mascherano to a red card and Piquionne rubbed salt into the visitors' wounds.
Referring to the midweek 2-1 defeat at Chelsea, Grant continued: "We played on Wednesday against a team in first place at home, and we showed ourselves if we can do things well at the bottom of the table we can still surprise the other team – and today it went well."