Afterwards, GB head coach Chris Finch remained positive as the team now head for Sheffield this weekend: "Spain are a world class team and we played well in front of a large, loud Spanish crowd. Foul trouble really hurt us but we were able to stay close and then Pops and Joel had more of an impact in the second half.
"We need to make more plays down the stretch to win against teams of this calibre. From day one we planned to play the very best teams in our preparation period. Every team we have played so far is qualified for the Olympics. This will serve us well over the next month."
After trailing 21-7, Great Britain found a way back into the contest thanks to their three-point shooting and after the first quarter, trailed 21-15.
A three from Lenzly, his second of the contest put GB up 26-23 mid-way through the second quarter. But just as the Brits were looking to extend their lead further, Spain responded and they led at half-time 38-32.
The third quarter, like the last four minutes of the second period was a tale of runs. GB went on a 7-0 spurt, inspired by Freeland. But as both teams traded buckets, Spain went on an 8-0 run themselves and finished the third up 59-55.
Luol Deng, who scored 12 points on the night, had been kept at bay by numerous Spanish players, kept GB in it and another three from Lenzly narrowed the score to 77-74 towards the end, but a vital block by Pau Gasol on Freeland secured the win for the Spaniards.
Both Pau and Marc Gasol led Spain with 16 points, Pau also grabbed 11 rebounds.
Great Britain will now travel home to Sheffield next Saturday and Sunday afternoon to play a two-game series with Portugal.
