"I need to respect the decision of the coach and respect my team-mates, so no problem with this," said Lucas who was left on the bench for the final in spite of scoring a dramatic hat-trick in Spurs' stunning semi-final comeback at Ajax.
Pochettino preferred to use Harry Kane in attack against Liverpool in Madrid despite a lengthy absence following injury.
Brazil international Lucas eventually came on in the 66th minute, but was unable to prevent Tottenham slipping to a 2-0 defeat.
"Of course it was difficult because every player wants to play. But it was even more to lose the game," Lucas was quoted as saying by several British media outlets.
"For sure he (Pochettino) has a good reason for this (decision) and I am sure that it was difficult for him as well to choose a player. He needs to choose only 11.
"I respect, I am a professional. No problem for this. Now I look forward to the next season."
The 26-year-old, signed from Paris Saint Germain in January 2018, believes Tottenham can use the frustration of losing out to Liverpool as motivation to fuel a trophy-winning season in the forthcoming campaign.
"I really think we could do better, could win this trophy. We had the quality for this," he said.
"I can't wait to start the new season, to do my best and have a great season like the last one. I think we are at another level.
"We reaRead More
