Juan Ignacio Chela (Spanish pronunciation: [xwan iɣˈnasjo ˈtʃela]; born 30 August 1979), nicknamed as "El Flaco" or "Liliano," is a tennis coach and former professional player from Argentina.

[1] In February, he reached the quarterfinals in Salvador, defeating Flávio Saretta and David Ferrer, before falling to Agustín Calleri, 3–6, 6–3, 3–6.

In May 2007, he appeared in the quarterfinals of his sixth different Masters event at Rome, also his personal best showing, with wins over Marc Gicquel, Igor Andreev, and world No.

In 2009, Chela played mostly Challenger tournaments, although he did reach the quarterfinals in Viña del Mar, where he lost to Tommy Robredo 6–0, 3–6, 4–6.

After he beat Rajeev Ram in straight sets, Chela won a controversial three-set second-round match, in which fellow countryman Eduardo Schwank was fined for his use of tactics when injured.

Chela then beat defending champion Lleyton Hewitt and another Argentine Horacio Zeballos in straight sets to reach the final.

Also in 2010, Chela won the BCR Open Romania in singles, defeating Pablo Andújar in the final 7–5, 6–1, and doubles partnering Łukasz Kubot.

In April, he reached the final in doubles in Monte Carlo, partnering Bruno Soares, but they lost to the Bryan brothers, 3–6, 2–6.

He did reach the third round of Wimbledon doubles, along with his partner Eduardo Schwank, losing to Daniele Bracciali and Julian Knowle, 5–7, 5–7, 1–6.