The Evening Standard report that the South African prop has refused advances from several rival clubs in favour of staying at the North London side, despite their automatic relegation to the Championship next season.
Koch, who joined Saracens in 2016, signed an extension with the men in black for the next four seasons until 2022 back in 2018. Koch could have opted for an early release from the contract due to the relegation, but instead appears eager to stay for the club’s year in the RFU Championship.
Koch would be the third big name in recent weeks to declare their loyalty to the Saracens. England stars Elliot Daly and Jamie George will be staying, adding two to a significant cohort of big-name players staying put.
He was part of the Saracens squad which retained the European Cup in 2017, earning man of the match in the semi-final, and has since won another alongside two Premiership titles.
The tighthead prop’s performances over the years have seen him a consistent selection in the Springboks squad having made his international debut against New Zealand in the 2015 Rugby Championship. He played in the Rugby World Cup final against England.
WATCH: Jim Hamilton looks back on what has been one of the most bizarre seasons in rugby history.
Sign up to our mailing list here and we’ll keep you up to the minute with weekly updates from the world of rugby.