Oubiña training with Celta in 2009
A ball-winning midfielder who came through the youth teams of hometown
Celta de Vigo, Oubiña was born in
Vigo, and he first appeared with the first team – courtesy of
Miguel Ángel Lotina – during
2003–04, in a 2–2 away draw against
Valencia CF, as the
Galicians, then also
participating in the
UEFA Champions League, eventually finished second from bottom in
La Liga; he became a mainstay in the subsequent seasons, under
After Celta's top flight relegation in the
2006–07 campaign, Oubiña stated his desire to leave, although still under contract and, as of August, it seemed that countryman
José Antonio Camacho's
S.L. Benfica were in the pole to acquire his services, but an agreement could not be reached on a fee – rumoured to be
On 31 August 2007, a one-year loan to
Premier League side
Birmingham City was agreed.
 Oubiña made his Birmingham debut on 15 September, as a late
Bolton Wanderers; after 13 minutes of the next game, at
Liverpool, he sustained an injury in a collision with
Dirk Kuyt to his left
anterior cruciate ligament, and was expected to be sidelined for at least six months.
On 9 February 2008, Oubiña's loan spell at Birmingham was cancelled by mutual consent,
 and he returned to Vigo to start his recovery. On 6 December, more than a year after his last appearance, he played four minutes in a 0–2 loss at
UD Las Palmas, and appeared in a further 14 games in
the season; he
relapsed in mid-September 2009, and underwent surgery in October preparatory to the planned reconstruction of his cruciate ligament in early 2010, after which he would miss the remainder of
Oubiña returned to full fitness in the
 playing 28 matches (24 starts, 2,120 minutes of action) as Celta returned to the top level after a five-year absence.
2014–15, Oubiña again failed to appear in any games due to injury.
 On 22 May 2015, five days after his 33rd birthday, he announced his retirement.