
Puerta was signed from Bogotá FC in January 2023 and initially loaned to FC Nürnberg in Bundesliga 2. Puerta made ten appearances for the Werkself in the Bundesliga and the Europa League in 2023/24.
"Gustavo will continue to progress, he's a very talented player as a six or a number eight," said Bayer 04 sporting managing director Simon Rolfes. "We think he will develop really well at Hull."

The Werkself will host VfB Stuttgart at the BayArena on matchday 16 of the 2025/26 Bundesliga season. The game is on Saturday, 10 January, at 18:30 CET. Information on ticket sales.
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The Werkself will host Werder Bremen at the BayArena on matchday 19 of the 2025/26 Bundesliga season. The game is on Saturday, 24 January, at 15:30 CET. Information on ticket sales.
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After falling behind early on, Bayer 04 took control of the game against a combative and disciplined FC Augsburg on Saturday afternoon. However, they lacked the necessary precision in finishing and hit the post and crossbar three times. After the game, coach Kasper Hjulmand said he wanted to get back to the "right philosophy" of previous matches with three games left in 2025. The Werkself review.
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Bayer 04 were beaten 2-0 away at Augsburg on Matchday 13 in the Bundesliga. The Werkself had the majority of the ball but fell behind early to Dimitrios Giannoulis and then Anton Kade inside the first half an hour. Despite an attempted fightback in the second half and striking the frame of the goal three times, Leverkusen were left empty handed.
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Werkself-TV shows the highlights of the Bayer 04 women's 3-2 win against RB Leipzig on the 12th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
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