General Cavoli's quote in context:
Asked about Russia's submarine patrols in the Atlantic, Cavoli said that "much of the Russian military has not been affected negatively" by its invasion of Ukraine."
He said that the Russian Air Force and Navy is largely intact. Why wouldn't it be?
As for the ground forces:
"The Russian ground force has been degenerated somewhat by this conflict, although it is bigger today than it was at the beginning of the conflict," Gen. Christopher Cavoli, the commander of US European Command, told the House Armed Services Committee."
Also not surprising given Russia has had mobilizations of its reserves.
The interesting part is the closing:
"The documents which were dated February and March this year detailed a number of shortfalls among the Ukrainian military, predicting that the conflict would ultimately result in a stalemate between the two sides.
But on Wednesday, Cavoli seemed to offer a different assessment.
"[A]ccording to the modeling that we've very carefully done with them, the Ukrainians are in a good position," he said. "They have some weaknesses that I prefer not to talk about in public ... But we are confident in terms of their surprise and things like that. of course, we've worked on all that with them."
Link:
https://amp.cnn.com/cnn/2023/04/26/politics/russia-forces-ukraine-war-cavoli/index.html
