The on-loan Albion man has helped Paris FC to two clean sheets in the last three games as they keep clear of the Ligue Un relegation zone.
He has also impressed staff at the club by how quickly he has progressed in speaking French.
Coppola helped keep out Julio Enciso and colleagues in a 0-0 draw at Strasbourg on Sunday, a day after his parent club were enjoying a shut-out away to Sunderland.
He also helped them beat Nice 1-0 before being held to a 1-1 draw at high-flying Lyon, who were only saved from defeat by a soft-looking penalty in added time.
Coppola is working under the guidance of former PSG and Nantes centre-back Antoine Kombouare, who took over as head coach recently.
He has been paired with former Senegal under-20 international Mamadou Mbow and both were included in the Ligue Un team of the weekend selected by French sports daily L’Equipe.
Coppola said: "We talk a lot on the pitch. It's good to play with him. He understands what I want and vice versa, so it's positive.”
Paris FC’s sporting director Marco Neppe is being credited with spotting the chance to take Coppola on board as he sought more playing time over the second half of the season.
Having initially been on the bench in league games as he settled, Coppola has now played five full matches in the league.
Paris FC lost 5-0 a home to title-chasing Lens on his debut but have conceded just two goals in the subsequent four games.
Coppola’s latest successful mission saw him contain Strasbourg striker Joaquin Panichelli, a 23-year-old Argentina international whose 14 goals make him joint second top scorer in the French league this season, one behind Mason Greenwood at Marseille.