Simone Inzaghi bemoaned Inter's inability to take their chances after they were held to a 0-0 draw at Shakhtar Donetsk.
Inter are still waiting for their first win of this season's Champions League after Tuesday's stalemate in Ukraine.
Each side had just two shots on target, with Shakhtar finishing with a slightly higher Expected Goals (xG) of 1.3 compared to Inter's 1.1.
Nicolo Barella was denied by the crossbar for the Nerazzurri, leaving Inzaghi to wonder what might have been.
"In some moments they did very well technically, while we did not take advantage of our chances," Inzaghi told Sky Sport Italia.
"We had five in a not brilliant evening and we could have won."
Despite failing to find the net, Inzaghi praised the performance of forwards Lautaro Martinez and Edin Dzeko.
"They had a great match, they sacrificed themselves," Inzaghi added. "Then I brought on [Joaquin] Correa and [Alexis] Sanchez who are starting to feel good.
"We knew it was a difficult away game: for once we didn't score a goal, but we were also good at not conceding it."
