Officers were called to Tunstall Road at 8.20am to a report of a stolen vehicle
On attendance, officers located a man in the garden of a property with serious injuries to his leg, head and face. He was taken to hospital where he remains in a stable condition.
A 38-year-old man, 43-year-old woman and 42-year-old woman, all from Portsmouth, have been arrested on suspicion of section 18 grievous bodily harm with intent in connection with this incident.
Officers have been conducting enquiries within the area.
Police would like to hear from anyone who was in the area at the time and may have seen or heard anything.
They would also like to hear from anyone who may have CCTV, dash cam, or Ring Doorbell footage of the area.
If you have any information, call 101 quoting 44210134809.
Alternatively, you can contact the independent charity Crimestoppers 100% anonymously on 0800 555 111, or via their anonymous online form at facebook.com/l.php?u=http%3A%2F%2Fcrimestoppers-uk.org%2F%3Ffbclid%3DIwAR12kJqMjniL8HWFIzUdgUoPRObtTBRxROU5-yUSwp9nnit4-0N0bXUMzbU&h=AT0NIJJMcUqQ8gb0BxeDrYxMhxIgXeMzejG4u5Z2OyV4C9jBEAwF73CFVIR1pT7PVayBQ-HadF-i3SLkfQvgVP1R1z8pS9rBIFHxXWdwziKUnbIH8rh364DmOSQHif9_T1vEJw&__tn__=-UK-R&c=AT2iiuZlRAtzXK41kXJzcI8L_xhObXVJtBdMipwitT5nOD0PnKta3ryVYmxfZh2PMNcy5e7Q6jL5XWBGRHVuy2eVmIwt-xX8cEwkezLkx1Xj43po859RDrujsruj6cPXKhB3-6wfvOzjtj8sCmd-LuT-ruOvN9rfTxaMbR-_tttxjw" target="_blank" rel="nofollow noopener">crimestoppers-uk.org