Erin Jasper Yopaj Ferrer is a professional Dota 2 player from the Philippines who became famous for his play as a midranger for BOOM Esports. Signature heroes include Templar Assassin, Ember Spirit, and Tiny.

Yopaj started playing on the pro scene in 2019, making his first appearance in the Goliath lineup, but left the team after the first qualifications for ESL India Premiership 2018 Winter. From February to June 2019, Erin Jasper plays in Execration lineups. But the high results of the team did not reach, after which, having taken 3rd place at The Nationals Season 1 Finale, Yopaj decided to leave the team.

All in the same 2019, the cybersportsman joins Neon Esports. As part of this club, Yopaj appeared in more than 1.2 thousand official matches. The team showed good results already at the end of 2019, winning regional tournaments Asia DOTA2 Master League season 1, VARENA DOTA Challenge season 2, Asia Pacific Predator League 2019 and others.

The year 2020 became very productive for the player: continuing to play for Neon Esports, Steven Jasper participates in more than 20 tournaments and passes the Asian qualifications for ESL One Thailand 2020: Asia, where he takes the fourth place. That's when Yopaj reaches the 10,000 MMR mark.

In 2021, Yopaj participates in The International 10: Southeast Asia Qualifier, but does not reach The International 2021. He wins the LPL Pro 2021 Season 2 and leaves the Neon Esports team in August of the same year.

In the fall of 2021, Yopaj joined BOOM Esports, with which he took first place in a number of tournaments - BTS Pro Series Season 8: Southeast Asia, BTS Pro Series Season 9: Southeast Asia, GAMERS GALAXY: Invitational Series Dubai 2022, and also took silver at DPC SEA 2021/22 Tour 2: Division I. In 2022, BOOM Esports players earn a slot at ESL One Stockholm 2022. Upon arrival in Stockholm, Steven Jasper admits that the team's rapport has improved over the course of the journey, but despite this the squad ranks 7th-12th.

• November 21, 2023 - Yopaj joined Shopify Rebellion.

In 2024, he tried to qualify for many major tournaments with the team, but did not participate in all of them. He played at DreamLeague Season 22, ESL One Birmingham 2024, PGL Wallachia: Season #1 and DreamLeague Season 23, and towards the summer he tried to qualify for Riyadh Masters 2024 and The International 2024, but failed to advance to the main stage. In August, the team competed at Elite League Season 2, finishing in seventh place and finished in 8th place at ESL One Bangkok 2024.

The team started the 2025 season by finishing 15th at FISSURE PLAYGROUND and 9th at DreamLeague Season 25. At ESL One Raleigh 2025, the team failed to advance beyond the group stage, as well as at PGL Wallachia Season 4.

On May 17, the team secured a slot in the main tournament of FISSURE Universe: Episode 5 by defeating Virtus.pro in the upper bracket final of the FISSURE Universe: Episode 5 Play-In playoffs. At DreamLeague Season 26, the team finished in 9th place.

On June 7, 2025, the team qualified for Riyadh Masters 2025 through the closed qualifier. Later SR placed 5th-6th on FISSURE Universe: Episode 5.

In July 2025, Shopify Rebellion ended their participation in Riyadh Masters 2025, finishing in 15th place and earning $50,000 in prize money.

On July 30, 2025, the organization shut down its Dota 2 division and released the roster.

On November 8, the organization OG officially signed the Team Aureus roster, including all players and the coach.

The first tournament for the updated team was PGL Wallachia Season 6, where the roster managed to secure 5–6th place.

At the beginning of December, OG competed in BLAST Slam V finishing 5–6th after reaching the tournament playoffs.

At the beginning of February 2026, the team competed at BLAST SLAM VI, where they took third place, losing to Team Liquid in the playoff stage. At the following DreamLeague Season 28, OG finished 9th-10th, being eliminated in the group stage, as well as on PGL Wallachia Season 7.